Live streaming from GoPro camera?

I have read about the Bacpac thing that you can watch live on your iphone and other smart devices. I was wondering how this works. Does it piggy back off your phone data, and what is the range for live streaming. Please let me know if I need to provide more detail about what I'm trying to ask.

600' range.

Phone functions as a hotspot. If you have a smart phone or tablet, you likely already have this service.

http://gopro.com/...ote-combo/

Get tablet