Ok, so i have been reading and trying to figure this out... On the website at ATT they have a Family plan for 1400 Mins which I am looking at for my Fiancee and I. What are these "Overages" with data i keep hearing people talk about? If the data is UNLIMITED then what else do i have to worry about? Do i need be careful of how long i sit on the internet with an iPhone? I don't have an iPhone but more than likely going to be getting one shortly after launch. Thanks!