The Raspberry Pi has arrived. (A mini computer for 35 dollars). It's first use will be primary experimental. Stupid projects, pranks, laser beams. Share your ideas for its secondary use.
I had someone come over and show me that thing awhile back. He made it output a video in 1080p. He was running Linux on it. Thing is cheap, and it will replace a lot of off the shelf hardware. If you want to get real crafty, build a 3D printer using the Pi.