You could be right, but it seems to me there is a lot of data going into that thing, if it is designed to not just check the data for matches, but also self-consistency across inputs it could be a pretty high bar... I imagine it does depth, IR temp checking (nose colder than face, etc.), image, and maybe even a couple ms of time monitoring to make sure the face is pliable and maybe even has realistic deformability.
Just a guess from the types of sensors and the custom ASIC that was designed to integrate them... at 600 billion operations per second it certainly seems like it would be capable of real-time integration and validation of all those things.
I wonder if the ir camera could be used for other purposes. If it can actually read the temperature, that's a neat trick. Probably can't though (see prices of flir lepton), I'd guess it is a b/w camera sensitive in the 700-800 nm range.
But still, with the dot projector, and that kind of processing power, they should be able to detect 3d gestures, similar to leap motion.
