This is probably some of the coolest research I’ve seen lately. It’s all about interesting things you can do with a Wii Remote (no need to buy a Wii, just the remote), and you can read about it here.
Things he’s done so far:
Minority Report style image manipulation
Digital Whiteboard using a projector, the Wii Remote, and a modified pen
VR headtracking
He includes source code for the programs to do this stuff, though it’s not supported by him or anything – it’s just there to get you started.
Personally, I think I may take that extra Wii Remote I’ve got lying around and try some of these out at home…