News! Redsn0w Untethered Jailbreak for iOS 4.2.1 Will Be Released On Christmas

Over the Christmas weekend we’ll be releasing a version of redsn0w that implements the “backup plan” to the 4.2.1 untethered jailbreak.  We’re seeking your help to test this redsn0w and find any bugs before we do a general release!
(If you have an iPhone 3G, or an old-bootrom ipt2g or iPhone 3GS, you already have an untethered jailbreak!  Just use the latest public redsn0w.)
To keep things manageable, this will be a Mac-only test program.  We also request that any volunteers *NOT* need the ultrasn0w unlock (in case things go very wrong).
Right now, the “backup plan” requires that you have the 4.2b3 IPSW on your Mac, and that Cydia has your 4.2b3 SHSH hashes.  Please don’t pirate that 4.2b3 IPSW!  (We’re also working on a way that this technique might apply to all those with 4.1 IPSWs, but that’s not the first goal right now.)

Redsn0w untethered JB will be released for IOS 4.2.1 but testers will be needed according to MuscleNerd from the iPhone Dev-Team. This has come from the news that Comex's version of the Jailbreak has been delayed for some reason. I'm not so sure about the quality of the temporary solution from the iPhone Dev-Team but for sure I'll not jump straight on it as soon as it is released as I'm pretty happy with what 4.1 has to offer right now. I do believe that the Dev-Team will not rush things out before testing out properly the jailbreak. So let the waiting game begins..the solutions will probably be released in this one or two days..