adeelarshad82 writes: While Microsoft does get points for innovation, Kinect for Xbox 360 isn't the first attempt to make gaming a hands-free affair. Decades before Microsoft would release its Kinect for Xbox 360 depth-sensing camera system, other companies tried to take the gamepad out of the gaming equation. Playstation, Dreamcast, NES and Sega have all been there. These attempts varied in usefulness, ranging from somewhat functional to laughable and pointless, and from the forgettable to the downright infamous.
We warn the reader in advance that the proof presented here depends on a
clever but highly unmotivated trick.
-- Howard Anton, "Elementary Linear Algebra"