if I purchase one of the 'official' unlocked iPhones from apple store, say in Canada, then would it be possible to use it anywhere in the world, with the appropriate SIM cards?
Most iPhones purchased with subsidization from wireless companies have the phones locked to the network, and as this phone will be for my mom who is not exactly tech-savvy (and cannot do jailbreak/unlock everytime she updates the firmware), I wanted to make sure that if the phone is bought unlocked and without contract, it will work anywhere (on GSM network), anytime.
Most iPhones purchased with subsidization from wireless companies have the phones locked to the network, and as this phone will be for my mom who is not exactly tech-savvy (and cannot do jailbreak/unlock everytime she updates the firmware), I wanted to make sure that if the phone is bought unlocked and without contract, it will work anywhere (on GSM network), anytime.