Ok so I've been waiting awhile for this update and now that MyWi is working on ios4 there's no need to remain on 3.1.2 anymore. I originally used the Pwnage tool and have the old bootrom on my 16gb 3GS and baseband 5.11.07, but I had a few questions. Do I need to update to Apple's OFFICIAL Itunes 9.2 software? If so, where can I get it or can I do it directly through iTunes? Should I set up as new or restore from a backup? Do I need to go and change my secure password via terminal again once it's jailbroken? Does ios4 improve battery life? Well, I'll be waiting to hear back from my knowledgeable fellow Macrumors members. Thanks in advance for your help.