From physorg.com A blind man wears a kinect on his head, and a special belt around his waist, that generated vibrations based upon what is detected by the helmet. This gives the wearer quite a bit of information about his environment, kind of like a tactile output for a radar input. Very cool indeed. It looks dorky of course, because it's a freakin' prototype. Proof of concept is there, now all they have to do is build it into a hat.
Sight for the blind, based upon something designed to be a toy.
And people wonder why I stopped reading fiction.