OK. Apple claims MMS will only work on iPhone 3G or 3G S which is why it is not in the 3.0 OS for iPhone 2G. Intuitively, the reasoning may be that MMS data not overload the 3G network; and this could be the reason why it is in the 3.0 firmware for the iPhone 2G. My thought is what if your iPhone 3G or 3G S is not currently connected to a 3G signal or your have 3G turned off? Will MMS simply not work at all? If this was already discussed, sorry.