mack knife writes "Applied Digital Solutions, Inc., received a patent for a device which can be implanted under the skin and powered by biomechanical energy. The device, a transceiver, can be tracked through GPS. God help us all. Yahoo story here."
Or see the company's page
. If your kid gets lost at MouseWorldtm
, no need to use the park's PA system and annoy everyone by paging him - just whip out the GPS transceiver and home in on him. Maybe we can start implanting them at birth.