Hopefully I didn't get your guys' hopes up, but I don't actually have a Raspberry Pi yet. However, it's on its way to my door (although I'm currently on vacation, so I'll have to wait a week). Now I'm filling up my time thinking of ways to use it. Most likely, I plan to make a robot from it. Since the Raspberry Pi has a lot more computational oomph than the Arduino, I want to make something more advanced than what I've done before. It'll probably be a mobile computer, with a keyboard, mouse, small screen, and perhaps some sort of manipulator to interact with the world.