Shoes with in-built GPS to track Alzheimer's patients go on sale in the UK | Daily Mail Online
Amazon.com: Zeerkeer Mini GPS Tracker Hidden Magnetic Mini GPS Locator Anti-Lost/Anti-Theft Real Time Micro Tracking Device with APP for Kids, Elderly, Luggage and More : Electronics
MediaTek 361 GPS shoe keeps an eye on your kids' whereabouts (pictures) - CNET