FaceTime over AT&T's 4G (you know, 3G) on my iPhone 4s (with a 2GB data plan) was enabled as of a few days ago. Haven't checked the settings since then, but I just updated to iOS 6.1 from 6.0.1, ...
Since iOs 6 and Mountain Lion I'm able to receive iMessages sent to my cellular number both on my iPhone and my Mac Book. Is it possible to do the same with FaceTime? I would like to receive FaceTime ...