http://www.hanselman.com/blog/Its2012AndYourKidsHaveAnIPhoneDoYouKnowWhe...
So basically this is a story about how this guy got a Voxer (iPhone app) message from a stranger. Next to his name was the red pin that commonly is seen on iPhones, he clicked on this pin and it gave the exact location of this person. Basically, more iPhone apps than we know leak our personal information and not to mention our exact location. This can be very dangerous for little kids!