It's amazing what these things can do:
http://www.youtube.com/watch?v=3CR5y8qZf0Y&feature=player_embedded

 

yes quite amazing.
i wonder if the sensors and processing are on-board or external.

i do kind of wish that they would also refer to what is happening as playing 'catch' or 'tennis' or something other than the word 'juggling' which they use.
actual juggling (more objects than 'hands') is very tough for roboters to pull off..

 

I read somewhere that there are overhead cameras and they are controlled by external computers.