A while ago, I unlocked and performed a jailbreak on an iPhone 3G. It is currently running 3.0 (7A341) and has firmware 04.26.08. I want to take this iPhone 3G to 3.1.2, but remain unlocked. I can't remember if I done the original unlock with Ultrasnow or PwnageTool - and I am unsure what to use. Any tips would be appreciated. If you need further info, let me know. Thanks!