A company is preparing to market gym shoes with a built in locator chip, which works like a GPS device to help you locate the wearer of the shoes.
http://cbs4.com/topstories/local_story_002175937.html
http://www.nbc6.net/technology/10652938/detail.html
http://cbs4.com/topstories/local_story_002175937.html
http://www.nbc6.net/technology/10652938/detail.html