Well now that certainly didn’t take long, Apple has only just pushed out iOS 4.3 Gold Master for their iPhone 4 and word is the latest operating system has already been jailbroken using PwnageTool 4.2, which will no doubt annoy Apple considerably.

According to the guys over at Redmond Pie, this jailbreak is a tethered version for now and means the user would have to “boot it into jailbroken state every time you reboot.”

What is needed to accomplish the jailbreak of iOS 4.3 GM is PwnageTool 4.2, iTunes 10.2, access to the iOS 4.3 GM firmware, PwnageTool bundle for iOS 4.3 GM, Mac OS X, tetheredboot utility and Universal Ramdisk Fixer.

The Redmond Pie guys have come up with a complete guide on how to jailbreak iOS 4.3 GM, which is a lengthy 15 step process, so rather than write it all out here and risk getting something wrong, those that wish to attempt the jailbreak I’d suggest you go direct to the Redmond Pie guide.

The jailbreak is semi-tethered; Cydia is fully working on iOS 4.3 GM and the baseband won’t be upgraded during the restore process. So if any of our readers give it a shot feel free to let us know how you get on.