to darn right bad in my home and office after the release of the 3gs. I don't receive about 80% of the calls being made to me. What are the chances of them letting me out of my contract now for free?
First off, before making any rash decision, consider this.
Is it the 3G giving you problems? Or the AT&T service itself?
I'd contact AT&T to see if they can help you out. Maybe it's the sim card that you are using, or maybe there has been a problem with service in your area.
Next, take the time to set an Apple Genius Bar appointment so they can run a diagnostic on your iPhone. Maybe you just have some faulty hardware, and I'm sure they can replace your iPhone if it's still under warranty.
If all else fails, sorry, there is no chance of them letting you out of a warranty for free. You signed a legally binding contract with AT&T, no exceptions, no questions asked. You'll have to pay the Early Termination Fee if you really want to leave.
I've already contacted at&t and they replaced the sim card (free of charge) which was deemed to be weak. This did not help at all. l live about 40 minutes away from the closest Apple store but I'm guessing they don't care about that lol.