Currently, if you want to jailbreak the iPhone 2G or 3G with firmware 2.0.1, you need to create a custom firmware first, then restore iPhone using iTunes. This may be not so convenient for users who have upgraded to 2.0.1 before the jailbreak tool released a new version.

iPhone Dev Team is so nice that they have made another tool called QuickPwn. Download it here and extract it, you will find there are DOS batch file. Run the iPhone 2G or 3G. It will show up a command screen. Then, follow the on screen instruction and iPhone will soon be jailbroken with Cydia. Remember, try it at your own risk.

[via iPhone Dev Team]