Whilst at the BETT show in Olympia last week I got my mits on one of the few OLPC XOs going around the country - aka The Hundred Dollar Laptop. Runs Linux, no moving parts, runs on as much electricity as a shrew could generate on a treadmill. Is completely amazing - incredibly clever and neat.
And very green!
That's me taking the photo on the screen - the webcam is to the right of the display.