I'm planning on importing the new [3G] iPhone from the US and unlock it but I dont want to install any other programs. Is it possible to unlock it without jailbreaking it? Or does simply jailbreaking mean unlocking it? If I unlock it, and there's a new firmware released (2.1, 2.2...), do I have to wait until there's a hacked version of that firmware? Do I miss any functionality or features if I unlock it? I live in Sweden where the iphone has yet to be released, is the Apple world wide guarantee valid with an unlocked phone?