With the major wireless companies going to tiered pricing only, how come they don't let you rollover your unused data for the month? The 2gb plan looks great now because a lot of people only use the iPhone for email and occasional web surfing and don't go over 2gb a month, but in the future there are going to be apps we can't even imagine yet and we will go over 2gb regularly and have to buy more data so the wireless companies basically have us right where they want us. Happy now with the inevitable ability of being able to charge us even more in the future. It would be nice to have the peace of mind of rolling over the unlimited monthly data that you don't use. Like if you only use 1gb of your 2gb of data a month, the next month you should have 3gb available to use and so on and so on. Could you ever see the wireless companies doing this?