Well, perhaps it's already happening. After all, you're voluntarily publishing your location in real-time to the world when you check into Foursquare. I find i

Well, perhaps it's already happening. After all, you're voluntarily publishing your location in real-time to the world when you check into Foursquare. I find it interesting that we do this naturally and without thinking twice about it. Ten years ago the idea might have seemed preposterous.