2010
Time Magazine
What Your Cell Phone Could Be Telling the Government
„Smart phones do many things these days: surf the Internet, send e-mail, take photos and video (and — oh, yes — send and receive calls). But one thing they can do that phone companies don’t advertise is spy on you.“

flickr/leeleblanc (CC BY-NC-SA 2.0)2012:
2012
Apple
„Find My Friends allows you to easily locate your friends and family from your iPhone, iPad, or iPod touch. Install this free app on your device running iOS 5 or later and sign in with the Apple ID you use with iCloud. Adding a friend is easy — just send a request to see their location.“