Here is some Update for upcoming iOS 4.2.1 Untethered jaibreak for iphone 4, as we have seen earlier they iphone Dev team is working on iOS 4.2.1 Untethered jaibreak and they have announced that they are very close to next level for jailbreak ios 4.2.1 on iphone 4.

Now MuscleNerd has replay to someone on his twitter account that iOS 4.2.1 Untethered jaibreak for iphone 4 coming to this Christmas, he has also mention that they are not waiting for christmas to launch this jailbreak tool but they are expecting that all work will be done by that day.

scotty6kids78: @MuscleNerd are we any closer to the unteathered #jailbreak for the new #ios4.2 on #iphone4 ?

MuscleNerd: @scotty6kids78 it’ll be here by Xmas (not because we’re sitting waiting for Xmas, but because it’s achievable deadline)

That mean with in some days we can jailbreak and unlock our ios 4.2.1 iphone Device, stay tune with us for more Details.