OK. So I just signed up for the AT&T 3G data plan on the iPad about 90 minutes ago. When I view account details it says everything's in order, and there's 0 of 250 MB used. However when I go into ANY app that tries to use data it pops up a dialogue box "There is no data remaining on your current plan. Would you like to add more data now? If you don't add now, you can do it later in Settings." When I click "Now" it brings up the cellular settings which show 0 of 250MB used. But no app will actually use anything. Anyone else getting that or am I alone? I should say I used maybe about 1 MB total (according to the settings - I synced my email accounts). So it *was* working. Now it won't.