This patent filed by Sony is for a 3D controller which responds to hand movements and also pressure from some sensors around the controller. It is expected to be used for immersing you in games to give better control. This is another step on from Sixaxis in that it responds to pressure as well as movement.
Although the patent has been made there is no guarantee that this device could come out. It would be interesting to see what difference the contoller makes, but I am not that excited to see it arrive in the store.
Via: PlentyPage