Hi, just about to take a trip to Hong Kong from the USA. I would like to use my iPhone 4, my wife's 3GS, and iPad while there. Unfortunately I have upgraded all of them to the latest s/w (4.2.1) and unlocking them at home seems impossible. Do I have any chance of getting them unlocked so I can buy pay as you go sims while there? ATT is a solid ripoff on roaming there. I need to make phone calls and use data. I'd be willing to use Data only and call via Skype. I see there are options to pay for unlocking online, but I have a hard time paying $25 each for three devices to some web-site when I won't know if it worked until I get there. Should I wait until I'm in Hong Kong and pay a store to unlock them? I also worry about giving access to my data to a store clerk for hours. Thanks for any help. I never make a move without consulting MR forums.