I have read a lot of conflicting reports as to whether there is a Gevey sim option to carrier unlock a 3GS, and received advice on MacRumours that conflicts with what Applenberry (the official Gevey distributor) have told me in an email. I would appreciate hearing from anyone who has actual, personal experience either way. I have a 3GS that my boss gave me after he accidentally updated the baseband to 5.15.04. It is carrier locked to AT&T in the USA, I am in the UK. I do not want to use the iPad baseband option, as I do not want to fry the GPS. Will a Gevey sim allow me to use this phone in the UK? Applenberry say no, and I can't see why they would tell me not to buy from them if this was going to work, but like I said, I've read a few blogs/posts etc that says this does work and not all of them seem to be from people who would have any sort of interest in misinformation.