Some folks know I work with assistive technology, and this shot is one from many I took in the last few days at a conference in Phoenix. This product is a web camera and computer monitor in one, with the computer user able to control all computer navigation with just eyes. This model features dual eye-tracking. If you look at the largest sizes, you can see the crosshairs registering on the pupil of each eye. Literally with the blink of either eye, the cursor will move, allowing navigation. This demonstator was playing freecell when I walked up to watch him working with the AT. Here, he showed me the registration setting where the device would fix the accuracy to both eyes.
EyeTech - Eye-Gazing Tracking System", using Quick Glass 3 as a mouse-replacement and monitor for Windows 98 through XP.