Slick. I can't remember where I saw it now, but I recently came across a video of what must have been the same technology, but after they had the hand demonstrate ball-throwing, another robotic arm with a camera sensor would hit the ball out of the air with a little bat. They weren't exactly home run quality hits, but it was still pretty impressive.

Ah. I found it. Here:

PS—When I'm a robotics engineer, all my demonstration videos will end with my robot crushing a replica of a human skull somehow.