I tried this 2 weeks ago, and thought it was a fluke, but tried it again last night, and it definitely worked. For all of you ATT iPhone 4S and older users, could you confirm that FaceTime over 3G or 4G works for you? All of a sudden, it does for me, though according to the Page 1 thread, this wasn't supposed to be available until the end of the year. Could someone else confirm that this does indeed work for you? It does now for me. BL.