I got my first iphone bill today and almost had a heart attack when i saw that it was over $1300!!!!!! That was for half a month, i checked my data counter and it seemed oridnary...around 40mb recieved, I call up rogers and tried to tell them about the situation as calmly as i could and they told me the problem was that they didnt activate the internet data plan until 2 days after i got my phone, they said that things like that sometimes dont kick in until the start of your new bill or whatever, i was lucky and it was only 2 days, and since the guy found out that we were never told he luckly took it off our bill.....
others might not be so lucky so WATCH OUT
other then that i love my iphone and i dont mind the cost cuz i use it so much