Answers: The Apple Iphone is locked and exclusive to cingular/at&t. If you do handle to get it unlocked, the individual things that would work would be text messages and voice. Google map, internet, and all those things are complex coded to cingular and cannot work with any other provider. So of late switch to cingular.as long as it's an GSm apple iphone and it's unlocked to your sim card carrier.
if you bought Unlocked Apple Iphone next yes.