I got an iPad2 in March, and signed up for the free month of 3G access promotion that ATT was having. Now I want to manage my account, either cancel or modify my plan. On my iPad, when I go to Settings->Cellular Data->View Account, I get the message "Your account type does not support the view account feature." My research tells me that this is happening because I have a post-paid rather than pre-paid account. Does anyone know if I can resolve this without a trip to the ATT store?