I have had my iPhone 3G since the launch in July and my text messaging will not work. I can't send or receive messages. I contacted ATT and my account is active for text messaging. I have restored my iPhone several times and it still wont work. I even have the latest software updates. The problem is that I am not the only one that I know who is having this problem. Does anybody know of a solution? The phone worked great with text messaging when I first bought it.