Lightglove is a new human interface device that falls into the category of virtual controller.
It is worn as a cuff on the underside of the wrist.  The light scans the palm area of the hand
and when a finger is sensed in the light beams, it pushes a "light button". The device also
senses hand motion for on-screen navigation. This allows the user to "air type", web surf
or play a game while using the visual feedback from their monitor or PDA.

        
    Interview with Bruce Howard and M.G. Howard