New Input Technology

[I am always on the lookout for the next thing over the horizon in terms of technology. I was doing my usual snooping around online and stumbled upon this story:

The story and attached video describe an input device that uses the skin of your forearm and hand as a canvas for a pico-projector and a vibration detector as the input controller. I find the accuracy of this technology questionable, however, I do not claim to be an expect in bio-input technology, so let us assume it works as well as the video shows.
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