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14. A wearable computer turns any surface into a touchscreen

14. A wearable computer turns any surface into a touchscreen. This is so freaking cool. [FastCo]
Chris Harrison, a PhD student in Human-Computer Interaction at Carnegie Mellon University, is full of interesting interface ideas. One of his latest projects is called OmniTouch, whose prototype design uses a shoulder-worn, depth-sensing camera/projector to create interactive "touchscreens" on anything from a nearby wall to your own forearm.
Watch the demo video and get blown away:
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