Crazy things you can do with location data!
Microsoft's MapPoint team has an internal location server that tracks the location of some its members. I developed a PocketPC client for the server a while back. Out of boredom and curiosity, I decide to check whether those guys are attending TechEd. As it turns out, out of the 7 persons located, none of them is currently in San Diego area. Most of them are still on the east coast. Talking about privacy implications of location based services!
