As I understand, iPhones get NAT IP (10.x.x.x) in AT&T 3G networks, and outgoing IP shows the gateway location (at least some located in Los Angeles).<p>From the article, the idea is interesting. But does it mean that it is possible for Stalqer to collect enough data to map AT&T NAT IP to 3G cell ID for location? I though AT&T would randomly assign NAT IP for users' privacy.
The accuracy of ip address geolocation in cellular networks is a waste of time. Best case you get a fix in the same state. If your on Wifi, that's another story, but again best case is metro area perhaps. This isn't really useful.