So I'm lucky enough to still have unlimited data on AT&T (and I do use over 2GB a month usually, but not more then 5GB). With the upcoming iOS 5 and it's new handy messaging feature between iOS devices, it seems that if you send the equivalent of a text to another iOS 5 device it won't count against your text messaging total, but will tick off a little data. My question is should I, or, can I, drop down from the 1500 TXT message plan I have now back to the minimum, since the vast majority of people whom I text back and forth with are also using iPhones? I think 450 txt's or whatever the low one is now will be more then enough for the few people I text with who aren't using iPhones. Will I lose my unlimited data if I alter my plan? I didn't lose it when I upgraded from the minimum to the 1500 plan last year, but then again they were getting more money out of me for that switch, so I understand why I didn't lose the UL data. Anyone have experience doing this?