Here they are juggling (this is the latest)
here's the juggling quad from december
here's one balancing a stick
here's several putting something together
here's one flying through obstacles
This is my favorite, it shows how they work
All of them so far have required a specially prepared rooms, with lights on the ceiling so that they can orientate themselves. However, integrating something like a smaller version of a kinect will allow these things to be fully autonomous. I do not doubt that our future will have these things everywhere.