http://news.cnet.com/8301-11386_3-57584024-76/your-very-own-drone-to-follow-you-home

The R10, the initial product from Uair. The company hopes to
eventually create a drone capable of autonomously tracking people, making the
aircraft ideal for adventure sports enthusiasts.

Yet Uair's ultimate product isn't its next drone. Rather, it's the UAV the
company hopes to get off the ground sometime in the first half of 2014. That,
said Bruner, will be a fully-autonomous quadrotor aimed at the adventure sports
market. The idea? Allow someone to go skiing, or rock climbing, or high-diving,
and know that their drone is following them the whole way, thanks to an on-board
tracking beacon, shooting HD photos or videos the entire time.

Thanks to Russ Brown.