Does anyone know if an ipad 2 will utilize Att 4G service? I know the 4s iphone after the update uses the 4G and actully shows 4G on the screen after the ios update.. My friends ipad 2 did the ios update to the latest version and it still shows 3G .. I know it wont use the LTE but will the ipad 2 use ATT 4 G service? Thanks!