It wasnt very smart of you to unlock your phone right now. Unless you want to go through the long tedious process of relocking your phone in a day or two so that you can update the firmware you will have a brick in your hands in less than a week.
Should have read up on all the warnings before unlocking it right now...
That's if he wants the iTunes Wi-Fi option. One is not required to update...I'm betting many with unlocked iPhones won't update.