Confirmed ! Redsn0w Untethered Jailbreak (Backup Plan) for iOS 4.2.1 Will Be Released On Christmas !
Since Comex’s untethered jailbreak for iOS 4.2.1 has been delayed, MuscleNerd of iPhone Dev-Team has announced that they are going to release their “backup plan” for untethered iOS 4.2.1 jailbreak over the Christmas weekend. However before they do a general release, they are looking for testers to try out this latest version of Redsn0w. The requirements for testing Redsn0w for iOS 4.2.1 untethered jailbreak are as follows.

