Ok, supposing i had GSM service with AT&T and i bought the 6230 that is out in the UK. Since it would be a SIM-Unlocked phone, if i took the SIM card out of the original phone i had with AT&T and put it in the new 6230, would it work and get service? Would I have to clear anything with the phone company like explaining why a different phone is using the card, or would they not be able to tell? Would having a phone from a different country present any problems? Sorry there are alot of questions.. but i dont know much about cell phones so, any help would be appreciated.