It's a first step, though. Imagine a time when you can look at a point on the screen and trigger a mouse event. Maybe there's a separate button to click but the point is your fat, grubby finger isn't blocking your view, or you're not having to constantly perform hand-eye tests with a mouse.

I've wanted good eye-tracking technology for nearly a decade, because it'd be so vastly superior to current technology. It has to be pixel accurate, though, and that's always held it back. Sounds like this might be making some progress.