chris harrison has done the amazing. he has created a prototype device that allows you to use your own skin as an input device.
he throws video onto his skin using a tiny projector. he then figures out what part of his skin has been tapped by picking up the vibrations using sensors. all of this processing is done in such a way that delivers a very responsive user interface. check out the video:
resembles some kind of holograpic futury shit we’d see on tv in the 90’s
you can read more about the hows and whats of this project over at chris’ website. if this is what the future looks like, i can’t wait to see it.