Android 4 Coming To the Raspberry Pi

SmartAboutThings writes "Raspberry Pi ... might be getting a functional Android port real soon. According to a post on their official blog, they have managed to port almost all the basic functions of Android 4.0 on Raspberry Pi, besides audio support. This comes after the Raspbian OS has been released for Raspberry Pi, and it promises to be 40% faster." For anyone hoping for source to the graphics accelerator, you're still out of luck: everything video related is still implemented using a blob.

Comments

Android is designed to be lightweight

[h111]

That Raspberry Pi supports Android should not come as surprise to anyone. Android has always been designed to be extremely lightweight and to be ran on minimalistic hardware. Unlike full suited competitors like iOS and Windows Phone 7, Android is best designed for feature phones and "smart" phones that don't require much.

The oddest choice, however, is that on top of the Linux stack pretty much everything runs on freaking Java virtual machine. I do hope that Rasbperry Pi, however, is not trying to emulate that. Other than that, great job guys. When you can get Android running on $29 hardware, you know you're dealing with some mad OS that can run on every piece of crap you put it on.

Great job Rasperry Pi guys!

Re:Android is designed to be lightweight

[Anonymous Coward]

Android does not run the Java Virtual Machine. It runs a totally different virtual machine - Dalvik. Yes, you use the Java programming language, but the bytecode is NOT Java. It's Dalvik.

Re:Android is designed to be lightweight

[i kan reed]

So, what you're saying is that it's "write once, run anywhere but android"?

Re:Android is designed to be lightweight

[fuzzyfuzzyfungus]

If they don't include the I-can't-believe-it's-not-a-JVM, they aren't running Android in any useful sense of the word...

If you don't include that(and the various system-provided widgets and APIs and things that depend on it), 'Android' is just a slightly weird Linux kernel(unless they've finished the merge, I can't remember offhand) that typically ships with a rather spartan collection of userspace applications. If you aren't going to include everything you need for full Android compatibility, you might as well not bother, at least you'll have a reasonably complete linux userspace to work with.

Re:Android is designed to be lightweight

[ShanghaiBill]

pretty much everything runs on freaking Java virtual machine. I do hope that Rasbperry Pi, however, is not trying to emulate that.

The Raspberry Pi has a Broadcom BCM2835 SoC, which includes an ARM1176JZF 700 MHz processor. The "J" in ARM1176JZF indicates that it includes the Jazelle hardware accelerator for Java. So it should be able to run Java very efficiently.

Re:Android is designed to be lightweight

[Anonymous Coward]

It's write once run anywhere that has a Java Virtual Machine, which stock Android does not.

Re:Android is designed to be lightweight

[Joce640k]

Android has always been designed to be extremely lightweight and to be ran on minimalistic hardware.

Is that why they based it on Java?

Re:Android is designed to be lightweight

[ZeroSumHappiness]

$25/$35 depending on model. Plus applicable tax and shipping.

Re:Android is designed to be lightweight

[chrb]

on top of the Linux stack pretty much everything runs on freaking Java virtual machine. I do hope that Rasbperry Pi, however, is not trying to emulate that.

Dalvik uses a register-based architecture, which is supposed to be more efficient. It also has a just-in-time compiler so it's not like each bytecode is being interpreted. But, yes, if you want to run Android apps then you have to do it this way. Hypothetically you could use something like gcj to compile Android apps from Java source to native code and you might see a performance improvement.

Re:Android is designed to be lightweight

[Anonymous Coward]

You should know that Android is not able to use anything of that -- mostly because in order to fsck Sun/Oracle they decided to "invent" Dalvik instead of using a proper VM.

Re:Android is designed to be lightweight

[Anonymous Coward]

Obvious shill is obvious. If Android were 'lightweight' why do Android phones need dual and quad core CPUs to have it run smoothly?

Re:Android is designed to be lightweight

[jawtheshark]

More close to 40€ for Model B. I know, I have two. One was from RS Components and was ~38€ and the other one was from Farnell/Element 14 and was ~42&euro, including VAT and shipping. You need a micro-usb power supply (hard to find relatively cheap, at least where I live. Best buy them with the device) and an SD card. The full price of my two Pis including SD and power supplies: 106,21€, where SD cards and power supplies were bought locally and on sale.

Now, I just need 6 more for an 8 node beowulf cluster ;-)

Re:Android is designed to be lightweight

[Anonymous Coward]

Android has its own set of libraries anyhow, so you couldn't write an Android app once and run it anywhere (outside of Android) to start with. On the other hand, developers didn't have to learn a new language.

Re:Android is designed to be lightweight

[DrXym]

That Raspberry Pi supports Android should not come as surprise to anyone.

I doubt there are many Android 4.0 devices which as little as 224-128MB of RAM which is what the Pi would have to work with. Also most Android 4.0 devices would have a higher clocked CPU, possibly with multiple cores to help it. So I wouldn't hold out much hope for the performance. It'll be very quick to kill apps because they exhaust memory or when they go into the background.

To put it in context, you can buy a gumstick style device containing a 1Ghz Allwinner CPU, 1GB RAM and 4-8GB storage running Android 4 or Google TV for $70 or less on places like Ebay. Even the performance of these devices can suck when too much multitasking or flash storage access is going on.

Re:Android is designed to be lightweight

[somersault]

More subtle than your usual efforts, but still obviously trolling.

Android and iOS are about as capable as each other, with sizeable app ecosystems. Windows Phone is lagging way behind, and will never catch up.

Your client's main product (Windows) got ahead in the first place by being "some mad OS that can run on every piece of crap you put it on". It's a winning strategy.

Re:Android is designed to be lightweight

[DrXym]

It doesn't use Java. It uses a register based virtual machine called Dalvik. It has been designed to be as lightweight as possible. The Android OS also uses a cut down user land and a cut down C runtime called BIONIC. It can run on low memory devices but I doubt Android 4.0 was ever envisaged to run on such a tight setup and I doubt the performance will be great.

Re:Android is designed to be lightweight

[Anonymous Coward]

not to mention you gotta buy an sd card or it won't boot and you probably want a usb wifi adapter and you probably want to buy a case so now you're looking at about 100 bucks which is getting into the territory of a lot of shitty low end android devices...and it doesn't even have a battery or a screen...add to that the fact that you are your own chinese sweatshop having to do the assembly yourself not for 50 cents an hour but a big fat zilch i guess i'd say it's pretty much not worth it actually!

Re:Android is designed to be lightweight

[Anonymous Coward]

So, what you're saying is that it's "write once, run anywhere but android"?

Java has never been that portable anyway. If you want to write code that you can run in virtual machines on pretty much any platform I would go for NES-compatible. There aren't many platforms out there without a NES emulator.

Re:Android is designed to be lightweight

[Nerdfest]

Don't feed the troll (or shill). New user, brief comment history is pro-Microsoft 'information', much of which is not even true. This is a bit better than the usual over the top, obvious stuff though.

Re:Android is designed to be lightweight

[Anonymous Coward]

That is, Java developers didn't have to learn a new language.

Re:Android is designed to be lightweight

[jawtheshark]

In the price I quoted, the SD card and power supply were included. I have no need for cases and I have a big enough switch (so no wireless required). In summary: No additional costs. It's a fun little device, but it's not meant as a drop in replacement for your crappy nettop. It's to experiment with and try to build fun stuff with.

For the record, one of the things that makes it awesome is that it has RCA out and not only HMDI. Why? Because I don't own a HDTV and many people most likely have an old spare TV lying around. No additional cost. I found it thrilling to see the linux boot screen coming up on my old 83cm 16:9 CRT TV (which we use daily. We don't replace hardware that is not broken, hence I have no HDTV and won't until said CRT will break)

Re:Android is designed to be lightweight

[Microlith]

Dalvik != Java. The bytecode isn't compatible with the built in accelerator, and this was deliberate.

Re:Android is designed to be lightweight

[vlm]

Now, I just need 6 more for an 8 node beowulf cluster ;-)

I also have "make a R-pi cluster" on my list. More for training and experimentation under ultra-portable and sorta low power conditions than any thruput goal. Also I'll be honest for the cool hack value. Whats killing it is memory. I would love a $50 model that has a gig (or dare I ask for more?) on board.

Re:Android is designed to be lightweight

[ZeroSumHappiness]

Let me say this again. The thing you are buying that is called a "Raspberry Pi" is priced at $25 for the Model A unit (not yet in production) and $35 for the Model B unit (in production and commonly on backorder). Tax and shipping is separate from the retail price of the product. VAT, being a tax, is a tax and thus separate, as an additional tax, beyond the $25/$35 price. Shipping, being shipping, is shipping and thus separate, as shipping, beyond the $25/$35 price. SD cards, being SD cards, are not "Raspberry Pis" and thus are separate beyond the $25/$35 price and so on for other additional peripherals.

So though it may cost /you/ 42€ for a Raspberry Pi when you include additional costs related to complying with legal requirements, getting it to your door and creating a running setup from it that doesn't mean that the Raspberry Pi itself, which sells for $25/$35 (model depending) does not cost $25/$35. When I buy a pack of gum for $0.99 I pay $1.06 because of taxes. When I order cat food online for $25 for a case I pay $35 because of the $10 shipping. It doesn't mean my cat food isn't $25 a case. It means I pay for shipping.

Look, Newegg has 8GB of ram for $45 right now! What's that, UPS shipping is another $6? Oh no, that means Newegg really only has ram for $51. No. The ram is $45. It's advertised at $45 and it costs $45. What's that, I can go to AlliedElect and order 4 Raspberry Pis and pay $35 each and $7 shipping? I mean, $36.75 each of course, because shipping doesn't exist and isn't priced separately.

Look, the 13" Apple Macbook Pro with Retina Display is $1200. Wait, tax isn't included in that, how dare Apple claim their computer is $1200 when I have to pay $1275 for it? Despicable, it is. It makes me wretch.

Stop pretending that the Raspberry Pi foundation is being disingenuous about pricing when 1. they have always marketed it as a just the actual computing device, not the storage, or the power supply, or the display or keyboard or mouse or modem or electricity or sense of smug self satisfaction you get from claiming they're lying and 2. it's not their fault that you have to pay for shipping and VAT.

Re:Android is designed to be lightweight

[Anonymous Coward]

mostly because in order to fsck Sun/Oracle they decided to "invent" Dalvik instead of using a proper VM

Most agree the Dalvik VM is actually superior to that of the ME version of the JRE. Dalvik also tends to map better to real processors, thusly slightly lightening the load of the JIT and some of the hoops it has to jump through for optimizations. Not to mention, Dalvik has some concepts which are both vastly superior and unique to Dalvik.

Re:Android is designed to be lightweight

[serviscope_minor]

The Android OS also uses a cut down user land and a cut down C runtime called BIONIC.

I hear these things like cut-down and lightweight. Honestly, how bloaty is the full glibc runtime and standard library? My 900MHz eee runs very nicely, and is now comparable in performance to high end phones.

Also, Linux ran very nicely with a full glibc on my P133 with 72M of RAM back in the day, the PII 400, then the PIII 850, then the P4 laptop, then eee, the Core i7 laptop...

I wonder at what point the "cut down" userland in Android is compared to the history of full userlands before.

I suspect that quite a bit of it is premature optimization.

Re:Android is designed to be lightweight

[Anonymous Coward]

Negatron delta. While the SOC does support java acceleration through Jazelle, ARM's implementation is proprietary and the technology is deprecated in favor of ThumbEE, which the older raspi SOC lacks.

http://www.raspberrypi.org/phpBB3/viewtopic.php?f=2&t=5111
http://www.raspberrypi.org/phpBB3/viewtopic.php?f=7&t=1924

Re:Android is designed to be lightweight

[Tapewolf]

I heard there were licensing implications for using the Jazelle module, which is why nobody does...

Re:Android is designed to be lightweight

[jawtheshark]

Given we're talking about an additional 300€, I most likely won't be doing it any time soon as I need the funds elsewhere. I also have no real use for a beowulf cluster, and I would only do it for the "it's cool value" as you say rightfully. Oh, well, who knows :-) Hardware is insanely cheap these days, so if you really want a beowulf cluster, I'm pretty sure you could go with new material, spend less than 1000€ and get great results. Of course, that kind of money may or may not be a bit overkill for a weekend project. (For me, it falls in the category: "too expensive").

Re:Android is designed to be lightweight

[DrXym]

Glibc is bloaty enough that most embedded Linux runtimes don't use it at all. They'll use uClibc instead which is mostly API compatible but is modular so it can compiled down to a small footprint so stuff like math library can be dumped on the floor.

BIONIC would be similar to that, implementing the most common Posix stuff but in a reduced form to support the OS and no more. Android userland is BSD based otherwise they'd probably have used uClibc too.

Re:Android is designed to be lightweight

[jawtheshark]

Europeans have the strange habit of looking at the full cost of a device. To a European that 13" Apple MacBook Pro with Retina Display costs 1275€, and *surpise* in the European stores it is that way that it will be displayed. (Given VAT is more around 20% than something else, that MBPro would be 1440€ and shipping most likely complimentary)

I have never said that the Raspberry Pi foundation has been disingenuous about pricing,. I just told what such a thing would cost effectively. In the end, to the customer, it is that price that matters.

Finally, I have the invoice of my Farnell Raspberry Pi on my desk here right now and it says: 27,25 GBP, without VAT, without shipping. Go figure, that isn't 35$ either! It's 42$. I'd wager to say that getting a 35$ sans-tax, sans-shipping Raspberry Pi is impossible today. Perhaps in a year, but now? Definitely not. Do I blame anyone for that? Of course not! It's still a nice toy which is not expensive.

I have a hard time understanding what provoked the aggressive tone in your post, as I just tried to show to others what they as a customer will pay. It still isn't much.

Re:Android is designed to be lightweight

[ansible]

Above and beyond that fact that you couldn't use Jazelle with Dalvik (as mentioned above), I've heard that the performance improvement from Jazelle wasn't really worth the effort for a modern mobile OS. Part of the issue, IIRC, is context switching. If you were running everything in Java (no native code execution) then it might be worth it. But if you're switching from ARM code to Jazelle and back again (as you would with a Linux kernel and userland Java apps), then the overhead takes away the performance gains. If someone has more info, please correct me, my information may be a few years out of date.

Re:Android is designed to be lightweight

[n7ytd]

The Android OS also uses a cut down user land and a cut down C runtime called BIONIC.

I hear these things like cut-down and lightweight. Honestly, how bloaty is the full glibc runtime and standard library? My 900MHz eee runs very nicely, and is now comparable in performance to high end phones.

Also, Linux ran very nicely with a full glibc on my P133 with 72M of RAM back in the day, the PII 400, then the PIII 850, then the P4 laptop, then eee, the Core i7 laptop...

I wonder at what point the "cut down" userland in Android is compared to the history of full userlands before.

I suspect that quite a bit of it is premature optimization.

You would be correct. The binaries for the runtimes are smaller, which is supposed to be good for both flash and RAM usage, but makes doing anything in C on an Android platform a royal nightmare. But, from Android's perspective that's OK, since you will be developing in Java anyway. The BIONIC library is custom-fit to include only the features that the Android team deemed necessary to get the system up to the point that developers can then use Java for applications.

If you have the displeasure of working at the Linux layer on an Android device, the first thing to do is install glibc and Busybox to bring peace to your soul.

Re:Android is designed to be lightweight

[TheGavster]

The raspberry site suggests performance is in line with an old 900mhz Pentium 2 (plus a fancy graphics card), so it might not be too crazy to compare capabilities with your older machines. Weird glibc optimizations are no end of trouble in my experience; working out what pieces are missing and hacking applications around that to get them to build is a huge hurdle in bringing otherwise Linux compatible software to these devices.

Re:Android is designed to be lightweight

[RabidReindeer]

Java has never been that portable anyway.

You're doing it wrong, then. Even Android Java is portable at the source level as long as you stay away from the the Android-specific packages and keep to the basics.

You can't be all things to all people, but Sun did a fairly good job of making something that did a reasonable approximation while at the same time hooking efficiently into the native platform OS.

Re:Android is designed to be lightweight

[Anonymous Coward]

then for the love of god why didn't they just use c or c++, java is ass

Re:Android is designed to be lightweight

[drinkypoo]

I would love a $50 model that has a gig (or dare I ask for more?) on board.

VIA has something you should look at. Only 512MB but that's an improvement anyway. Unfortunately they want $30 for shipping, which is asstacular.

Re:Android is designed to be lightweight

[drinkypoo]

For the record, one of the things that makes it awesome is that it has RCA out and not only HMDI. Why? Because I don't own a HDTV and many people most likely have an old spare TV lying around. No additional cost.

It's awesome to me because I have the 7" display part of a portable DVD player here, and a 7" usb touchscreen overlay here. I plan to put them all together and put the result in my car. I ordered a unit from Newark/element14 today because they said they had 1 in stock, and then they sent me an email telling me they're going to ship it in two weeks. The email also says I am paying $0 for shipping, which I hope to be true, and which would salve the sting of being lied to or at least deceived more than a bit.

Re:Android is designed to be lightweight

[CastrTroy]

Actually, if you live in Canada, you can get one from Newark for $35 CDN. Which, with today's exchange rate is $34.94. So you can get it for less than $35. Plus shipping and taxes of course.

Re:Android is designed to be lightweight

[xaxa]

The price from RS in the UK ( http://raspberrypi.rsdelivers.com/default.aspx?cl=1 ) is £21.60 without VAT or shipping, which is $33.50. That's also what's printed on my invoice, from 19 May.

Re:Android is designed to be lightweight

[Anonymous Coward]

yes, but it gained your mom's fat ass.

now every fat fuck in America is on board with android, because now it's been made "fit" for mass consumption, with the gpl gone.

Re:Android is designed to be lightweight

[Anonymous Coward]

When I pointed the reality of pricing out to slashdotters in the past, without fail, the posts always get troll moderated. It seems slashdot pi fanatics absolutely hate the truth about pricing. I have no idea why, but they've proved to be extremely ignorant and irrational - without fail.

Re:Android is designed to be lightweight

[TheRaven64]

Jazelle is not publicly documented. The technology basically reserves a few registers for VM state and the rest for the stack of the current program. You use a special branch-to-Jazelle-mode instruction and then it starts executing Java bytecodes, trapping into the emulator for complex ones. There are two problems with this. The first is that the lack of documentation and the requirement to pay a patent license fee if you do use it even with the (expensive) documentation means that there is no open source implementation. The second is that it executes JVM bytecodes, not Dalvik ones.

Re:Android is designed to be lightweight

[Anonymous Coward]

Tax and shipping is separate from the retail price of the product.

Not in the UK, where it is a legal requirement to list the inclusive retail price ( tax + mandatory fees ) when selling to non-corporate customers.

Re:Android is designed to be lightweight

[Anonymous Coward]

Supposedly easier to port to new platforms. Not sure if that's really true though.

Re:Android is designed to be lightweight

[0100010001010011]

Unlike full suited competitors like iOS and

You know they ported Android to one of the early iPhones and it ran like crap because of how much overhead Android needed for the Java stuff.

Re:Android is designed to be lightweight

[ZeroSumHappiness]

Sorry I snapped at you so harshly. I failed to take your comment in good faith. I'm sick of people complaining that the RPi is being sold at more than the promised price but shouldn't have taken out that frustration on you.

If I recall correctly, one of the two distributors was explicitly including shipping in their price. However, if they're not selling at the exchange rate value of $35 before adding shipping they're doing it wrong and you should tell on them to the RPi Foundation.

That said, pre-tax, pre-shipping I can, in the US, order at $35 all day long. I would complain at the UK side of Farnell/RS if you can't.

Re:Android is designed to be lightweight

[dave420]

They don't. They need those processors to run lots of apps at the same time. That's like saying Linux is the most insane bloatware because supercomputers with thousands of cores use it.

Re:Android is designed to be lightweight

[vlm]

Hardware is insanely cheap these days, so if you really want a beowulf cluster,

Yeah I have a small 4 machine cluster in my basement, if something that small even counts as a cluster. What I want is a fully functional one small enough to fit in a lunchbox that'll run off practically a wall wart (well, thats asking alot, maybe a very large laptop charger...)

Of course, that kind of money may or may not be a bit overkill for a weekend project.

A lot longer than a weekend project in total, resulting in a pretty cheap per hour burn rate. I aim to keep my hobbies cheaper per hour than golf and dating, which is actually quite a lot of money.

Re:Android is designed to be lightweight

[gl4ss]

write once, port anywhere.

Re:Android is designed to be lightweight

[Anonymous Coward]

there were no 900Mhz Pentium 2s

Re:Android is designed to be lightweight

[gl4ss]

Dalvik != Java. The bytecode isn't compatible with the built in accelerator, and this was deliberate.

afaik that might not really matter with jazelle. bigger problem is that it's totally properiaty, they won't give you docs AND IT'S SLOW AS SHIT. but from what I read iirc it wouldn't be that much of a thing to convert the dalvik code accordingly. however if you can do just regular JIT it'll beat the shit out of jazelle.

Re:Android is designed to be lightweight

[Flipao]

So, what you're saying is that it's "write once, run anywhere but android"?

No, but you already knew that,p... doesn't even hold up to scrutiny on the Java VM

http://en.wikipedia.org/wiki/Write_once,_run_anywhere

The catch is that since there are multiple JVM implementations, on top of a wide variety of different operating systems such as Windows, Linux, Solaris, NetWare, HP-UX, and Mac OS, there can be subtle differences in how a program may execute on each JVM/OS combination, which may require an application to be tested on various target platforms. This has given rise to the joke among Java developers, "Write Once, Debug Everywhere".

Re:Android is designed to be lightweight

[Anonymous Coward]

So what broke and promted you to buy the Raspery PI? Did you have a C64 or something?

Re:Android is designed to be lightweight

[Anonymous Coward]

Reason why Android is so light, is it use Linux operating system 2.6 and now 3.0 version (Android 4.x series) and as all know, Linux operating system has managed to run on 8bit emulated 6.5Khz CPU.

The Dalvik isn't a problem in Android, actually it is the one what makes Android so good. I just installed Android 4.0.4 to Asus EeePC (Android-x86.org) and it works nearly perfectly (RC2 in use, few problems like I can not use android smartphone tether or hotspot features) as I can install apps normally from play store or from smart phone, without need to recompile or search architecture versions. So ARM7 and X86 works great with Android. Easier and enjoyable than using Linux system in same way, or what Windows 8 will be or how OS X handled PPC -> x86 32bit -> x86 64bit (nearly perfectly but).

Re:Android is designed to be lightweight

[DrXym]

Performance is going to be in line with a very slow smart phone running the latest Android 4. I wouldn't get my hopes up if I were you. I've use raspbian on the Pi and while it works the experience is definitely in line with the specs of the device - very slow. I see the Pi more useful for embedded applications where there is only one or two application processes running so the context switching is minimized and best use can be made of the hardware. Rasbmc works fairly well on the Pi because the hardware decoder takes care of the mp4, but I could see it buckling if it has to use software decoding for anything.

Re:Android is designed to be lightweight

[Anonymous Coward]

As an european having the strange habit of looking at the full cost of a device I can try to explain why we act in such a weird way: since you *must always* pay taxes, we look at taxes as an inherent part of the price. Taxes are the same, no matter where do you buy the-thing, and thus, they cannot be separated for the price. Probably some person with a Maths degree could express in a more formal way what I'm trying to explain but, basically, we -the europeans- live in a world where everything is priced (more or les) X1.21 (21% VAT in Spain next september). As I told you, from a maths point of view, X1.21 can be cancelled in every part of the equation when you perform pricing comparisons, but it doesn't make any big difference...

Yours*1.21,

Re:Android is designed to be lightweight

[jawtheshark]

It's okay. An apology on slashdot is already a rare thing :-) I'm happy with the Raspberry Pi, happy with the price and happy with I can do with it.

Re:Android is designed to be lightweight

[jawtheshark]

The "strange" part was sarcastic, but yeah, I know the reasons because I am European.

Now if only...

[Anonymous Coward]

Now if only the Raspberry Pi would come to the stock rooms of all the online stores that are supposed to be selling the fucking thing without "may take 12 weeks to deliver", that would be nice.

Re:Now if only...

[Anonymous Coward]

Wait until the end of the year when they'll start shipping them with cases :-)

Re:Now if only...

[DrXym]

It took me about 7 weeks from ordering to get one. Now that I have it I'm still wondering what to do with it, though probably I'll end up using it to run XBMC or something similar of an embedded nature.

Maybe not that lightweight

[Dr. Manhattan]

On the other hand, Android likes a bit more RAM than 256MB. My original Droid has 256MB of RAM, and had some issues with version 2.2 (Froyo). I had to do some fairly extensive tweaking to get acceptable performance with Cyanogenmod (2.3 Gingerbread). I'd be quite nervous to try to run ICS with that amount of RAM...

Re:Maybe not that lightweight

[Fallingcow]

It continues to amaze me that modern "light weight" operating systems are so much more resource hungry BeOS was, doing essentially the same tasks—especially since they get to offload so much basic UI work to the graphics chip!

My phone's much more powerful than my old Pentium 133Mhz machine w/ 64MB RAM (luxury, I know) was, yet BeOS on that clunker was 100x more responsive and less prone to weird UI bugs, brief hangs, and outright lockups than my Android phone. iOS is (a lot) better, but still very greedy and bloated by comparison.

Then again, it ran circles around its contemporaries in the desktop operating system arena (including Linux), so maybe it was just so good that it's asking too much to expect even a company with vast resources to write something comparably nimble and capable.

Re:Maybe not that lightweight

[kaiser423]

A lot of that extra RAM space is actually in all of the images/bitmaps. When you're phone is doing 720p, just caching a background image is pretty huge. Add in all of the layers to draw on top of it (widgets, icons), some picture caching for recently run apps, etc and you're using a pretty huge chunk of RAM. On my OG Droid w/ 256MB of RAM, I noticed that when I was running out of RAM, most of what was taking up space was cached images.

Re:Maybe not that lightweight

[pipeep]

They do get to offload a lot of the work to the graphics chip, which undoubtedly helps, but they're also expected to perform compositing now, and typically to include all sorts of extra graphical effects. On top of that, as h111 mentioned, we have all these interpreted languages and VMs (such as Dalvik), and all the work done by modern web browsers to handle fancy interactive websites.

It's the price we (or rather, perhaps, the typical consumers) pay for prettier graphics and easier software development.

Re:Maybe not that lightweight

[dave420]

And your BeOS was 100x less able.

Re:Maybe not that lightweight

[Fallingcow]

Than Android? Than Windows and Linux in the same time period?

To either I say: hahahahahaha.

Re:Maybe not that lightweight

[gl4ss]

it's just 3 686 400 for a 1280x720x4 bytes image. so if you have ten fullscreen frames of gfx loaded it'll still just take 36 megs. with the amounts of ram in 256mbyte+ it doesn't really matter that much. true, just upping displays from 16bit to 32bit back in the day did matter, but on pc's (and surprisingly enough on phones just few years ago) the ram amounts available were in 16-32 megs ranges when that switch happened, once the ram 10 times that much it doesn't matter as much.

not that it matters, a lot of the memory is wasted elsewhere in os design too.
http://www.gsmarena.com/nokia_e90-1857.php

e90 had 128mbytes of memory and after boot it had around 80mbytes of free, 800 x 352 screen which is around the same resolution as many 512mbyte androids in size.

you'll be amazed if you look at windows phones memory consumption for fairly simple apps(there's a soft limit at around 90mb per app so the app can still run on 256mb devices). and if you look at how many ui elements are in a typical app in wp vs. symbian and you'll be more baffled at where the fuck is the ram going. true, higher resolution graphics need more ram but nowhere to the tune the apps os's are using it. I'm still waiting to read a decent explanation why ICS needs more ram than GB, since it would seem to me they would have had more time removing debug prints from the source and so forth, actually reducing actual memory requirements(or is it because it keeps snapshot images of the views for taskswitcher that's the main culprit in the recommended amount or some such?).

Re:Maybe not that lightweight

[gl4ss]

Yeah on beos you could actually reboot parts of the os without having to reboot the whole thing - load soundcard drivers on the fly without crashing a single thing for example.
or you mean it didn't include a mail reader or desktop embeddable windows or ?

it's still better than osx and windows combined. if there were modern drivers and sw I'd use it.

Re:Maybe not that lightweight

[Anonymous Coward]

I'm still waiting to read a decent explanation why ICS needs more ram than GB

Um, why? I mean, why are you waiting? They've already explained that - hardware acceleration is expensive. Phones have shared GPU/system RAM - it isn't dedicated. So take those 1280x720 images and *double* the RAM cost as you now have the decoded bitmap in system RAM, and the GL texture for the GPU to actually draw. Add various caches for things like text on top of that (GPUs don't really do 2d vector drawing, so things like text are rendered by the CPU and uploaded as a GL texture - then subsets of that texture are repeatedly drawn for each glyph). And the hardware itself makes significant cuts into the available RAM. Take the Galaxy Nexus for example - it has 1GB of RAM, but the kernel only gets ~710mb (and remember, that is then shared between the CPU and GPU)

Then add in all those various background services - gmail syncing, play store syncing, etc... and suddenly you don't have all that much RAM left for the foreground app. Especially when a lot of apps these days are partially (or fully) built on top of HTML/CSS/JS, which is far from efficient.

Grammar

[Anonymous Coward]

"Real soon"? As opposed to fake soon? Really soon!

if only raspberry pi had wifi

[Anonymous Coward]

but it doesn't

Re:if only raspberry pi had wifi

[ZeroSumHappiness]

Add on a USB wifi dongle if that's what you need?

Re:if only raspberry pi had wifi

[xaxa]

I saw someone with a USB Wifi dongle on his RPi that was about 5mm bigger than the USB socket. A search for "tiny usb wifi" shows there are several, but I'm not sure which one it was -- they aren't necessarily all compatible.

Are desktops in the Android CDD yet?

[tepples]

For all I can tell, this is solely an AOSP port like that used in the Archos 43. I'm not aware of any device profile in Android's Compatibility Definition Document for desktop or set-top devices, so I don't see how this Android port will be running the popular Android applications that are available only through Google Play Store. Or when was this changed?

Re:Are desktops in the Android CDD yet?

[ADRA]

As in field of dreams, "if you build it, they will come"!

The more important question would be if Google blesses the port for use with the Play Market at all.

Re:Are desktops in the Android CDD yet?

[GiMP]

Does it matter? This will enable developers to build applications to run on the RaspberryPi that will be portable to other Android devices. They'll also be able to use their existing knowledge of Android programming to write their apps, or if only learning, will be learning a skill that is transferrable to other hardware environments. That in itself is an amazing and useful thing.

No, I wouldn't recommend you make this your desktop. You could make it a set top, if you write your own apps or install open source applications available outside of the Play Store. In fact, for a set-top box, you'll probably want to write your own apps anyway, because you'll want things like IR receivers which are not part of the standard Sensors library. You'd need to integrate your own custom Open Accessories to sense/control additional hardware (say, for instance, through the GPIO pins)

Re:Are desktops in the Android CDD yet?

[JabberWokky]

How does Google TV factor in? I know only vaguely about it, but it would seem to have 10 foot interface apps.

Re:Are desktops in the Android CDD yet?

[gl4ss]

..there isn't one, but so what?

android works just fine with mouse + keyboard. of course you can't bundle it with play store and distribute it. however, you could install play store anyways.
so this will be running the popular android applications just fine, just find the apk's from somewhere and point the browser to the apk - done and done.

Re:Without fail

[Joce640k]

It's an interesting gadget for hackers (ooops, I mean "makers").

Would you prefer more posts about Samsung vs. Apple?

Re:Without fail

[CanHasDIY]

It's an interesting gadget for hackers (ooops, I mean "makers").

Would be far more interesting if we could get our hands on the damn things, without a 3 month wait...

Re:Is there a kickstarter?

[CanHasDIY]

So, honest question here - who pays you to make idiotic, hateful comments on /. every day, and what's the going rate? I could use a little spare income.

Bee Ess

[Anonymous Coward]

Android is designed to be lightweight? What nonsense.

Ice Cream Sandwich? Raspberry Pie? I think I gained five pounds just reading this article.

Lightweight? I think not.

Re:Bee Ess

[jones_supa]

Maybe, but that's just the desserts. The main course can be found in PCs running Fedora Beefy Miracle and ScummVM Picnic Basket.

I would rather...

[Biotech_is_Godzilla]

So which do you reckon is going to come first? Being able to get hold of a £25 raspberry pi and ICS for it, or an official ICS update coming out for my £200, 1-year-old Desire HD? I'm going to be puh-retty annoyed if its the former...

Re:I would rather...

[Attila Dimedici]

If I were a betting man, I would put my money on you being pretty annoyed in the not too distant future.

Re:I would rather...

[Anonymous Coward]

I bet it won't take nearly as long as getting windows phone 8 on my Lumia though.

Re:Without fail

[jkflying]

Patience, my young padawan. Acquiring a Raspberry Pi through haste does not come.

Re:Without fail

[Anonymous Coward]

Ask, and ye shall receive

Raspberry pi and andriod os

[generic]

I'd be interested in loading andriod on my second pi due in late august, I hope it is out by then. The raspbain distro is very snappy on the little Pi. I'm very happy with it.

Re:Without fail

[CanHasDIY]

Patience, my young padawan...

Ha, obviously someone has not read my post history...

Yum!

[Githaron]

Now I can have a Ice Cream Sandwich with my Raspberry Pi(e)!

Re:Without fail

[Black Parrot]

There is a slashvertisement for Raspberry Pi on this site at least once a day.

I was expecting an article about a bitcoin app for the RP.

Maybe with some flamebait about evolution or global warming thrown in, to buff up the hits.

Java on Raspberry PI

[Anonymous Coward]

The latest version of Raspbian doesn't seem to run Java correctly anyway. Oracle/Sun's JRE worked correctly on the earlier release of Raspberry Pi, but doesn't work with the latest release.