Tapping your hand on air...
aeroTAP is next generation of user interface using webcam - Virtual Touch Screen User Interface - without any controller such as keyboard, mouse or others.
aeroTAP works with generic webcam running with small CPU resource. it also can recognize some gestures. user can run aeroTAP and navigate PC and run applications without keyboard and mouse.
Please visit aeroTAP Project Web site for more detail.