I live in the Salt Lake City Metro area. I recently switched from a tdma at&t phone to a gsm at&t phone. I love AT&T for their "cool" phones and their data network but I don't get a good enough signal where I live, on the new gsm phone, for it to be worth keeping. I am thinking of porting to T-mobile. Does anyone know how t-mobile data (speeds, content, structure) compares to AT&T Wireless? There 19.99 unlimited Internet plan looks great. I sure like their 3000 Whenever minute voice plan. Does anyone know when AT&T gsm will have the signal strength that t-mobile gsm currently has?

Porting. I know that if your are still under contract with a carrier that you are required to pay an early termination fee to the carrier you are leaving. What about changing financial responsibility on a line of service. When AT&T does this process they tell the new holder of the line of service that they assume the contract term but also that they have a 30 day satisfaction period. Does this mean one could port in that 30 day period and not be charged the cancellation fee?