I've posted this before (several months ago) and I'll post it again. AT&T will drag their feet on enabling MMS as long as they possibly can. When they said late summer, they meant the very last day of summer, and it could drag on beyond that. Why? Go read HowardForums.com and find out how they are doing with the 850 mHz capacity overlays in NY, SF, and LA. It's progressing, but far from done in NY and LA, and there's no sign of any of it being switched on yet in SF. With all likelihood, none of it is moving as fast as they hoped. Without these overlays, some people with iPhones are already experiencing nearly intolerably poor service, so why would they flip a switch that would only make it worse?