Didn't a few people at MIT do this about 5 years ago? I seem to recall seeing something like this in demo form (not production-ready, obviously) about that lon

Didn't a few people at MIT do this about 5 years ago? I seem to recall seeing something like this in demo form (not production-ready, obviously) about that long ago. It could read gestures and perform functions (i.e. if you framed something with your fingers, the built-in camera would take the picture), if I recall correctly.