It is finally here, p0sixninja Tweeted that the jailbreak community just posted an untethered jailbreak solution for A5-driven devices running iOS 5.0 or iOS 5.0.1. The software is a long expected follow-up to an untethered iOS 5.0.1 exploit for non-A5 devices that has been released in December 2011. More info and HOW TO video after the break.

The updated greenpois0n tool is can be downloaded here and is for Mac only, but they are working on a Windows version that should be released soon.

The application lets iPad 2 and iPhone 4S owners finally jailbreak their device without the need to tether it to a computer upon each reboot. This jailbreak can be used with both iPhone 4S running iOS 5.0 build 9A334 and iOS 5.0.1 (builds 9A405 and 9A406) and iPad 2 running iOS 5.0.1 build 9A405.

Source [9to5mac]