So AT&T says that 98% of the smartphone customers use less than 2GB of data every month. BUT 0% of AT&T's smartphones support video chatting. So, if the new iphone supports iChat, how do they/we know if 2GB will be enough for the month. This, the iAd issue, and apps using the new APIs in OS 4 (that i dont know the way they will affect my usage) are the reasons why im going to stick with my unlimited data plan when i upgrade. Anyone else get what im saying?