How fantastic this is... my first thought is that it might be useful for Alzheimer's patients. If they come home, fine, but if they don't, check on the web. And with geofencing there could be an alarm sounded if they get on a bus and are heading out of town. Unless, of course, they've put down the cell phone somewhere. I guess that's the weakness of my thought--easy to lose the phone. Still, maybe it's of some use. I can't be the only one to have thought of this, so I wonder what you folks might have to say about the possibility.