It may not be as convenient as, say, Three UK's attempt to abolish data roaming frustrations, but today AT&T has partnered with yet another WiFi hotspot provider to make sharing those vacation pictures with cubicle-bound chums that much easier. International hotspot outfit Fon and Ma Bell have inked a deal that opens their respective WiFi networks up to each other's customers, though jetsetters will need a device compatible with AT&T's WiFi International iOS and Android apps. That's not the only catch, either. Like with AT&T's other hotspot arrangements, patrons of the US carrier will already need a roaming data plan to take advantage of the free 1GB of WiFi per month -- a 300 or 800MB Global Add-on package, in this case. Well, like everyone says: there's no such thing as free international WiFi sharing agreement data.