My brother and I have put up a blog discussing our messings with lasers, webcams, wiimotes and python. If you saw his talk at Pycon, and want to play with the code, you can find it there. I recently made the laser stuff work in Linux (hence the title of this post) (should be straightforward to port for windows folks). For those who didn't see his talk or BoF session, there's some videos there now explaining exactly what the games do. Enjoy!