For iPhone jailbreakers out there that use Greenpois0n keep you eyes open in the next few days for an update which will deliver support for the recently released iOS 4.2.1 which is expected to hit in the coming days.

According to an article over on iPhone Download Blog, iPhone hacker P0sixNinja announced the upcoming Greenpois0n update via this Twitter account, which stated…“GreenPois0n should be updated to support 4.2.1 (tethered or semitethered) within a few days”

On the other side of the counter apparently the iPhone Dev Team has issued an update on iOS 4.2.1 jailbreak and unlock which states that the guys are working hard to get the update ready.

So there you go if you are waiting for Greenpois0n to be able to jailbreak iOS 4.2.1 it should come along in the not too distant future, and of course once it does if you experience any issues feel free to shout them out in our comments area.