I bought this hexacopter some time ago in the Hobby King sale. It was reduced from around £159 (I cant remember the exact price) to £15.
It can be controlled by an iPhone, Android phone or Devention transmitter.
I was unable to get it to work using either a recent iPhone or Android phone however I did get it to work using an old iPad and a very old Android (version 2) phone. On these devices though the video feed was very flaky.
I then got a Devention transmitter (Walkera DEVO 7e) and it works fine.
I have read that it is possible to stream the video to a wi-fi device while controlling the 'copter with the transmitter. This is the next thing I am going to try. I will post an article with my progress soon.