Still interested in jailbreaking? If so, then the newest redsn0w jailbreak will be of special interest to you. Redsn0w 0.9.6b4 has just been released by the iPhone Dev Team which basically serves as their iOS 4.2.1 jailbreak offering for the time being while they still prep its full PwnageTool version. Unfortunately, it’s tethered for the iPhone 4, iPad and iPhone 3G S (new bootrom), but since there aren’t any better alternatives available as of this posting, there’s really no sense in complaining. iPhone unlock-dependents, meanwhile, are still advised to stay clear of iOS 4.2 as they’ve yet to assess if it can be unlock using their current tools.