Palm OS Apps on Linux Mobile Phones

An anonymous reader writes "PalmSource revealed details of its Linux-based mobile phone operating system, Tuesday at 3GSM in Barcelona. Codenamed ALP (Access Linux Platform), the architecture supports Palm OS application binaries, Java apps, and native Linux apps. ALP includes a 68K emulation layer capable of running 'properly written' Palm 68K or 'Garnet' application binaries without modification, PalmSource claims. However, devices based on ALP are not expected until next year -- will it be too late for PalmSource and it's parent company ACCESS to gain a foothold in the mobile phone market?"

Comments

PalmSource Open Sources Binder

[Eugenia Loli]

PalmSource also open sourced today their Binder technology, now called OpenBinder. This futuristic architecture technology is described by engineer Dianne Hackborn in her interview.

Re:why not years ago?

[TheRaven64]

When palm started out they were using those horribly underpowered Dragonball CPUs from Motorola. This was a cut-down 68K chip, with no MMU which ran at between 16 and 33MHz, giving a staggering 3MIPS. The lack of an MMU alone meant that they couldn't go with any Free POSIX-like OS available at the time. The lack of power made it even more certain. They could probably have licensed something like QNX, but then they would have been dependant on a third party for their OS.

Don't forget, the first Palms were released in 1996. Back then, desktop CPUs were past the 100MHz mark and pushing past one instruction per clock. The DragonBall, in comparison, had less power than a MicroVAX and, while you can run NetBSD on a MicroVAX, you really don't want to - and you'd want to even less if you had to re-write the VM subsystem to work without an MMU.

The original PalmOS was designed for a platform where features were far less important than battery life. Shoehorning a full UNIX-like OS in would have required a lot more resources, which would have driven the cost up and the battery life down - exactly the opposite of what was required.