The aim of this project is that you can do the following:
1. Take a laser pointer, webcam, and video projector.
2. Connect them to your computer.
3. Place the camera in the vicinity of the projector.
4. Now, simply use the laser pointer as a pointing device (read: mouse) to control your computer!
This might potentially be useful as a remote control device for home cinema (it is for me), or as an input device for presentations. Or maybe it's just something I wrote because I think it's cool.