Greenpois0n Untethered Jailbreak for iOS 4.2.1 on All iDevices on Its Way

Few minutes ago p0sixninja the hacker behind Greenpois0n jailbreak has just announced that the new version of Greenpois0n is being updated to be untethered jailbreak for iOS 4.2.1 on iPhone 4,3GS iPod touch 4G, 3G and iPad, but the untethered task has caused a delay in releasing the new Greenpois0n.

I apologize for the delay in greenpois0n 4.2.1 support. Our current focus is on a permanent untether solution

Till now there is no ETA (estimate to arrival) for the new Greenpois0n. By the way Comex is also developing a new method to make untethered jailbreak for iOS 4.2.1 on all devices and it's expected to see the light on Christmas.