Takes forever to load, but pretty neat, it has a vector for the direction your eyes are pointing, detects blinks and mouth opening/closing.

It seems pretty bound to symmetry though, if I blink just one eye, it seemed to think I blinked both, and if I raised one eyebrow it seemed sticky and raised the other even if it went down.

Also, it didn't detect things like frowning, or slanted brows, but still, very neat.