For a couple of years, we've been hearing about computers and devices being controlled by hand gestures. No touching the screen, no using a mouse--you just use the motion of your hands, face, or eyes to execute commands. To understand the impact this will have on the way we control our PCs, TVs and other devices, take a look at this video showing a new software that extends Windows 7 and 8's touch screen to physical gestures.
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