Hi... currently, I have the Iphone 4 and signed up for the 2 GB + tethering through AT&T. I know there isn't a jailbreak option yet for tethering, but my question is... if there were one in the near future, how will I be able to escape the fact that At&t does monitor data usage for internet? Not that I would use more than 2 GB a month, but lets say I did use 3 GB of data one month through some third party jail break application. Wouldn't At&t know that I am using such data through their service? If I drop their tethering service, yet use tethering through a jail break application, won't AT&T still be able to tell I am using the internet? I hope the question makes sense? Thanks.