Linutop. Xubuntu in a small package.

Its small, it runs linux. What else could a warm blooded geek want? This little PC, if you can call it that, will run Xubuntu using a USB flash drive. This little Linux PC will run you about $400 and prices will drop in the future.

Although the PC is pretty weak, it can be put to use in schools, government agencies, boats, cars, etc. All you really need is a wall jack.