said by Gone:
I think it's safe to say that this has more to do with building something cool ...
Well, this american guy didn't really build it.
He bought the "quadrocopter kit and attached a smartphone with a video chatting app enabled." The open source app already has GPS tracking so all he did was put a GPS beacon on his kid.
Anyone can do this, if you buy the quadrocopter kit. There are some on Amazon for under ~200-250$.