Hmmm... true, I can't think of any better thumb-excersizes.
I mean, I appreciate the ingenuity and hours of calibration that it must have taken to make something like that, but what are you going to do, program it to send a haouduken whenever you hit the A button? Program all the moves from tekken (heh... an AI button-mashing. That's actually a funny thought)?
-kv