The Puyocon mouse is shown off at SIGGRAPH Asia 2009 by students at the University of Tsukuba. Unlike other mid-air input devices, the Puyocon is meant to be thrown either as an input gesture, or for passing from one to another. With 14 pressure sensors in it, it is able to capture with reasonable detail the movement of the ball. It is a bit difficult to imagine it working well with Powerpoint, it may prove very fun in combination with party games in which people toss it to each other. For more visit the Puyocon website.