-Turn Your Apple Notebook Into a Light Saber
This awesome program uses the motion sensor in newer Mac portables to create light saber sound effects. This could be the coolest use of the motion sensor yet.
I nearly tossed my MacBook Pro across the room playing with this thing.. awesome awesome awesome
UPDATE: I just found a link to a video of someone who was kind enough to record his in action with the built-in iSight. I was thinking about doing this myself but now I owe him a thanks.. Thanks fellow MacBook (Pro?) user . Click Me

Yeah, that was a Pro
In fact, although I don’t have a video, my friend and I just had a star wars “dual” with our MacBook and MacBook Pro.
Seriously cool!