The project boasts a letter grade improvement in a unreferenced study of over 1000 students. I don’t know if this is compared with other tutoring software, or if the emotional recognition had anything to do with it. This seems cool, but I am waiting to actually see it in action before passing judgement.
Also, if I were using this technology, I would totally try to mess with it. And that is why the computer hive-mind is going to kill me when it wakes up.