I want to buy an unlocked iphone (not 3g). I have tmobile service. My question is if i put my tmobile sim card in the unlocked iphone will i be able to use safari/appstore/sms/maps? If not, is there a way i would be able to? i know that there are unlocked iphones (on ebay) that use gsm, so i can use tmobile sim card to make calls. i want to know if i can use safari , email, etc. please answer this if you comprehend what im saying and know what your talking about :X