Homebrew Microcontroller Laptop, Made of Wood
Brietech writes "This is a homebrew laptop project based on a Picaxe microcontroller. It has 16kb of RAM, 256kb of storage, sound and a self-hosted development environment! It has a simple CLI, file-system, 'EMAXE' text editor and a programming language called 'Chris#.' Oh, and yes, it runs Linaxe."
I don't know much about the PICaxe, but for $8 (single unit qtys) you can buy an 80MHz MIPS microcontroller with a lot going for it. This one has 32KB of onboard RAM and 512K of flash.
Program Intellivision!