I think these are some cool videos. Robotics are really interesting, and it's always fun to see what people come up with. There is no danger, or any intention I can see of robots replacing humans when it comes to this music. The dundun robot is cool, and I would definitely want one for my home. The djembe and bongo robots need some kind of different arpeggiators or something because to me, they seemed pretty monotonous. But still, very cool from a robotics standpoint.
There's a great video of a guy who built a midi-bata set that he plays with mallets and his feet. When I read about it at first, I rolled my eyes, but it is actually really cool...
Oh, here it is.
http://www.youtube.com/watch?v=kJSchB0lyhA (don't mean to hijack the thread with this)