We love the quadcopters here at Digital Diner. They are so maneuverable and able to lift so much that they make a very interesting platform for research. It is amazing to see the pace they are evolving. This latest video shows some work by the folks at ETH in Switzerland where they have gotten three quadcopters to cooperate to throw and catch balls. I know, I know. You are saying, "I can can throw a ball! What's the big deal?" Well, can you throw a ball accurately with two other people using a net? Oh yeah, and remember as you watch this that in addition to throwing and catching they are also FLYING!
More info here.