GPS enabled shoes that broadcast a signal to a remote location that maps your movement on a picture of the earth. So when ever you fly, drive, walk, or ride, a red line is drawn through your path. this is the new form of social networking. And when visiting new places you could upload status updates, reviews, and photos from a mobile app. This is the 22nd century in action. Complete integration of myspace, facebook, and twitter. Your friends would always know where youve been although privacy could be an issue, tracking could be disabled as you like.