Mailing the story:
SIXAXIS, Linux, robot... we're in.
Yeah, Wiimotes aren't the only motion-sensing game controllers that can be hacked for fruitless new uses. Take the new SIXAXIS Linux integration project, which, so far as we can tell, is an incredibly effective means for maneuvering small, custom robots in need of a good 3D controller for manipulating, um, a small flat plane.