Autonomous Airdog Drone is Personal Aerial Cameraman

The Airdog is a quadcopter drone that follows people, videorecording what they are doing - action sports seems to be a particular interest.  It is not commercial yet, but they are raising money and perfecting the product.  It is kind of like having your own personal aerial cameraman, without having to hire a helicopter or a drone pilot to do the filming.

The Airdog is programmed to follow the Airleash, a device you wear on your wrist.  You press a button to take off, then the Airdog follows you recording your stunts, then you press a button to make it land.  The video below gives you some idea of what it can do.

Seems like a great idea but I am sure there are some concerns about safety that need to be addressed.