So, I'm getting my iPhone 3g on Thursday it should be here. Is there anything i need to know? I want to jailbreak it and use themes I do not want it to be unlocked. (Or do I? Is there any reason i would if i already have a plan?) Can I just Jailbreak it like i did my previous 2g's on Blackra1n?? Or do I need special firmware to preserve my baseband?