pretty neat take care as to what's around you when you start swinging your notebook around - don't smack it into something - and also, I reccomend you swing it side to side then back and forth (screen moves) http://www.macupdate.com/info.php/id/21732 DESCRIPTION Now that you've spent entirely too much money on your fancy sudden motion sensor equipped Mac laptop, I predict you'll soon be swinging it around like a loon. Introducing MacSaber 1.0 Beta. Using your Mac’s sudden motion sensor, this software turns your computer into a Jedi weapon almost worthy of taking on the real thing by making authentic lightsaber sound effects. It senses speed for the lightsaber movement sounds and acceleration for different levels of striking sounds. This beta is not yet compatible with the motion sensors in older Mac laptops, but I understand you can move the window arond to get the idea.