Hi, Quick question if anyone would be kind enough to humour a total n00b. I am considerin buying and unlocking a new UK 8GB iphone using ziphone and using it on UK Orange. When my orange contract runs out in a couple of months, I am considering changing to an official O2 iphone tariff. Is there any possibility of returning the phone to a state where I can plug it into itunes and activate it the "proper" way? Many thanks in advance.