A friend of mine sent me this video just yesterday, showing the feed from a FPV quadcopter:
http://www.youtube.com/watch?v=TrVLh6r8hd8&feature=player_de...
Because it wasn't clear to me at first, I'll just point out that the pilot for this thing is using a VR headset similar to Oculus Rift, and the video is sent back to him over wifi. Supposedly the range is on the order of a mile or so.
I didn't even realize this was a feasible thing already! Looking into it, you can get these things for only $1500 or so. And so suddenly I've just realized, 10 or 20 years from now, it's not just the police who will be flying these things around. Why not buy one to use for your own neighborhood watch, right?
Hell, I'd love the chance to fly one of these around just for fun.