It will never cease to amaze us how quickly the iPhone Dev Team can bust open a new version of the iPhone Firmware. This time, around 48 hours after iPhone Firmware 2.2 hit, we already have a new version of QuickPwn and PwnageTool. Before you go ahead and jailbreak your iPhone 3G, please make sure you fully understand the following caveat: If you use QuickPwn instead of PwnageTool, you may not be able to unlock your iPhone 3G once an unlocking tool is made available.
The iPhone Dev Team have released version 2.0.1 of their infamous Pwnage Tool, which can now activate and jailbreak a 3G iPhone. Unfortunately, unlocking the phone for use with another SIM card is still a work-in-progress.