Scientists from Cambridge Uni in the UK have created a method that makes it possible to write using your eyes. The method is quite genious, and they have a demo ready for everyone to try. Myself I was pretty impressed with the teqnique. Of course I don't have the eye-camera that is needed in the real application, but in the demo it's possible to use the mouse instead. But you still get the impression it would work even with a camera attached to your eye. This must be something like a breakthorugh for peole with movement disabilites!

The project here: http://www.inference.phy.cam.ac.uk/dasher/

Download here: http://www.inference.phy.cam.ac.uk/dasher/Download.html