Here are two videos about Sony Move Linux mouse driver released by Pennock in his blog.
To quote from his blog (linked above): A couple weeks ago at the game developers conference Sony announced a new product called moved.me which is basically a C library that allows you to connect the move controller to your computer.
Is currently in closed beta and I just got access to it this past Thursday. I spent my weekend playing with it and so far Iíve built a Linux mouse driver.
Since the Sony software is still closed Iím going to hang on to the source code at the moment, but hopefully by the time it goes public I will be up to polish this up into a nice wand gesture-based Linux Media Center.