It seems this is useful for interpreting sign language - and may be another GUI ...

lifeisstillgood on Feb 7, 2013 | parent | context | favorite | on: First impressions of Leap Motion

It seems this is useful for interpreting sign language - and may be another GUI for talking to a computer - but if you have sign language you can type ... Although I can see the value in accurate gesturing in a room to say turn off the lights.