Developed by Pranav Mistry, Patti Maes, and Liyan Chang, Mouseless is a special kind of user interface for the pc. As the name suggests it allows you to work on your computer without a mouse.
Mouseless is made up of an IR laser, an IR camera and special software. In operation the laser illuminates the parts of the hand that are touching the surface of the table or desk and the camera tracks those illuminated parts. These movements are then interpreted into commands that range from left or right button mouse clicks to multi-touch gestures.
Reportedly the interface was built for only $20. See Mouseless in action in the video below.
[source: Technabob]

