A top down (GPS satellite) bottom up (embedded cellular transceiver) solution to a Personal Location Service (PLS)... Where is my child... did my Alzheimer afflicted parent get lost...how far and how fast did I jog today? The answers to these and other moving questions are the service provided by the creator of the first truly Smart Shoe GPS tracking device. It not only knows where it is, it knows how fast, far, when and how high it was — Better still it remembers all of that and let's you see the secure data in real time on a Google map from a Smart Phone or PDA. It's an incredibly complex technology, but if you can tie a shoe lace, you too will one day "Maxwell" with your own GPS Smart Shoe. - Mark