Untethered iOS 4.2.1 Jailbreak Is On Its Way !

MuscleNerd of the iPhone Dev Team has confirmed that he has got untethered jailbreak working on the latest iOS 4.2.1 firmware. He further explains that this a “backup” plan to Comex’s upcoming userland method and that it is generalizable.

In the description of the video, which was used MuscleNerd specifies the kernel version 4.2 beta 3 of IOS in order to successfully run the Jailbreak Untethered, since it is vulnerable all'exploit Star comex used in Spirit, in Jailbreakme and jailbreak iOS4.1; in this way they will not be used any new exploits.