My eye blink software was originally not intended for public use so early. One doctor accessed me and asked me if I could help a completely lamed, quadriplegic patient who doesn't have enough money to buy himself an eyetracker.
My software uses blinks of the eye to control a keyboard which is very similiar to the TWOnScreen keyboard. Those blinks of the eye are captured with a modified webcam. It still has some disadvantages (e. g. it needs to be initalized manually - at present, and it needs reinitialization when lights change much), but I think that we cannot wait until the perfect tool has arrived. I tend to think there is none, since even when eye trackers cost up to $20.000 (and more) there is no promise that they really work, as I see from other post about this theme. Companies tell you that they have to reinitialize when lights change, but consider a 10% "I want my money back" as normal :-)
If anyone wants my blink controlled software, they should write me.

Tom Weber.