The iPhone Dev Team is at it again, doing the usual jailbreaking and releasing the PwnageTool for iPhone 2.2 firmware and QuickPwn. Those are made using Apple’s beta version of the new OS and you should know that the Dev Team’s software works on both Mac and Windows.
All you need to know about the last jailbreak can be found here and you should remember to backup your iPhone before you start, as usual.
For those in need for backup advice, here’s an useful link and an iPhone backup file extraction app which you can use. Keep in mind that the jailbreak mentioned above is NOT the iPhone 3G unlock feature, so we’re still waiting for that.