I have just bought a new 8 Gig iPhone for a friend of mine who is back in India. I need to unlock the phone before this Friday using Pwnage tool and hand it over to him. I have the following questions regarding unlocking the phone. 1. Do I need to change the SIM card(Official AT&T SIM card) that came with the phone with some other SIM card before I start off the unlocking process? 2. If I have to change it, can it be some other AT&T SIM card? 3. After unlocking the phone, do I need to do any localization process to make the phone work in India? Thanks in Advance!