Loved it! What a splendid place for eavesdropping! I wonder how much these things cost, how long a time can it fly, etc.
A friend of mine has a very simple set up that he must keep in view so he can aim it, and not to far. The high end models will fly for quite awhile, but the difficulty lies in dealing with any winds or updrafts, the more $$ you spend, the farther you can fly it. Using radio signal to send the video feed back to the controller allows one to correctly aim the heli cam and steer it when out of view. Then it starts getting expensive. But, entry level models are pretty cheap if you already have the cam. I bet pretty soon we'll see them flying along the upper reaches of High Ex etc..