The new iPhone firmware version 2.2 featuring Google Maps Street View and Podcast downloading, among other features, has just been released. The iPhone Dev Team also didn’t waste any time in pushing out an update to their Pwnage Tool utility that enables iPhones to be unlocked and Jail Broken.

iClarified have also updated their "How to Unlock/Jailbreak Your 2.x.x 2G iPhone" guide, very useful if this is your first time unlocking an iPhone.