I was wondering if you have to get your phone "unlocked" to switch between official carriers of the iPhone3G... I am with Fido (in Canada) and I go to Japan once in a while with my girlfriend to visit family and I wondered if I could switch to SoftBank (official carrier in Japan) without any complications. Should I be able to select "SoftBank" from the Carrier menu once I'm there? Could I just grab a SoftBank SIM card and use it? I'd like to have this figured out _before_ I'm there and can't use my phone! Please Register or Log in to view images Thanks a bunch!