Sony Ericsson gesture controlled cameras?This article contains unofficial information.
Possibly this technology can allow actions like answering a call (using handsfree) from the other end of the room by waving their hand in front of the properly situated phone or switching between songs on the player. You won’t need to set a timer on the camera if you want to take your picture, you can just raise your wrist and show how many seconds it should take until the shot.
The idea is good and innovative, but for now it is just a patent. The system might not be as practical as it looks.