Hi, I was wondering if someone with prior experience with using their iphone overseas could help me. I'm moving to Portugal for one year, and I have an unlocked iphone 2g (using it with tmobile). My question is, would I be able to use this phone overseas with one of their carriers? i hope that i can either get on a monthly plan or prepaid plan in Portugal, but will my iphone work (i really don't want to have to spend money on buying another phone over there). If anyone is knowledgeable about this, please please help me out!