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Calculators should be multi-line like this - it's so much easier to keep track of calculations. Similar to LastCalc is InstaCalc on the web and something on the Mac called Soulver which is also very impressive.

Shameless plug: I've been working tirelessly on something like this too for almost a year, and apart from lists and a couple of other minor features, is a bit like LastCalc on steroids:

OpalCalc (for Windows currently).

The screenshots should give an idea of what it can do, but to name a few things: it's even more like notepad, faster, can handle times/dates, and allow words in the sum (like saying "5 oranges * £10 = £50" ).

Yep, you did it right: 900 GB/month in KB/sec. Of course it depends on how long your "month" is (30 days or 365/12).

Oh, it's only about 10^32 years. How old is the universe again? =)

http://instacalc.com/?d=&c=biA9IDUwfHBob3RvbnMgPSB uXm58c3VuIHBlciBzZWNvbmQ9IDEwXjQ1fHNlY29uZHMgPSByM iAvIHN1biBwZXIgc2Vjb25kfHI0IHNlY29uZHMgaW4geWVhcnN 8fA&s=sssssss&v=0.9

People often get stuck in a false dichotomy when choosing between a web and desktop app.

The simple answer is to use the web version for what it's good for (centralized updates, rapid development) and the desktop version for what it's good for (performance, offline access).

Some apps run a local webserver on a non-standard port (Yahoo Music Engine) to create a hybrid model. Javascript/HTML can be a very effective rapid prototyping tool.

For instacalc, I have an online version and downloadable gadgets to fill this need. I use both thunderbird (fast access to mail, offline access) and gmail (access from any computer) to read my email. The "secret" is letting a web app be a web app, and a desktop app be a desktop app. Use the right tool for the job.

Yeah, it's pretty mind-blowing. 350 mph is 500 feet per second!

Here's some more helpful conversions:

66 km^2 in miles^2 = 25.48 miles^2
66 km^2 in furlongs^2 = 1,630.89 furlongs^2
66 km^2 in rods^2 = 2,609,432.82 rods^2

Shameless plug: I made these using http://instacalc.com/beta/, a new tool I've developed. Feel feel to play around for all your conversion/calculation needs :)

I've whipped up a calculator to estimate download time:

This is all theoretical of course; networking gurus can add in the effect of TCP headers, etc. to get a real throughput rate. Feedback is very welcome, thought you'd find this useful.

I wish the review site had some charts to help show the difference in FPS for those games. I made a quick chart in case you want to see.