On the topic of the cell phone call with the teenagers, this past Thursday during the Buffalo Bills game a fan was eject and told his brothers to meet him at a local bar. He decided to take a short cut through a wooded section near the stadium, he ended up being face down in a small creek. The Local police department pinged his cell phone to find the location of where he was. this "ping" tool could be helpful as well with backpacking or outdoor activities if you have your phone on you.

here is a link to the story [url=http://www.wivb.com/dpp/news/erie/bills-fan-found-dead-in-nearby-creek][/url]

Most people carry their phone with them everyday, so the phone is almost like part of the body.