I live in Japan and am on a 3G that is dying, with a spidercracked screen to boot. I want to come home next year though. If I sign a contract here with our provider, break it and pay the ETF, and jailbreak my phone to unlock it, can I strut into AT&T when I arrive in the States to live and get just a plan through them with my unlocked/jailbroken phone from Japan? Some searching says that this is possible, and even better that AT&T won't give me a contract, just month to month. Can anyone verify this, and can anyone verify that a jailbroken (not officially unlocked through the provider) phone will have no issues with this?