I am selling an ipad and want to totally blank it out. I have seen several tutorials online that say if you go to 'General' / 'Reset' / 'Erase all settings' that it will accomplish this. However, after I did it, the ipad still has my AT&T 3g info stored. My 3g phone number, my name and address, my credit card number. That doesn't sound a complete reset and erase to me. Any advice on how to completely purge old data and personal information? After I did the "complete" erase, I hooked it up to itunes and set it up as a new ipad, but it did not do any more to delete the info. Thanks.