They have also released the updated version of unofficial QuickPwn: QuickPwn 3.0 Beta 3 for Windows users to jailbreak the latest beta
version of iPhone OS 3.0.
You might remember that the iPhone Dev Team had warned against using the unofficial QuickPwn tool for the following reason:
most important thing about the unofficial QuickPwn releases is that if
you use them, you will kill yellowsn0w, possibly forever.
If you are new to the iPhone hacking world, yellowsn0w is Dev team's software method to unlock iPhone 3G which currently works only with baseband 02.28.00 which was included in iPhone firmware 2.2,
and if you use the unofficial QuickPwn tool; you will end up upgrading
your iPhone 3G's baseband with the latest version included in the
latest beta version of iPhone OS 3.0.
When iPhone firmware 2.2.1
was released, Dev Team had released PwnageTool which allowed users to
upgrade to iPhone firmware 2.2.1 but preserve the baseband. Since Dev
Team isn't planning to release the PwnageTool for beta version of
iPhone OS 3.0; you won't be able to preserve the baseband of your
iPhone 3G. They have given the reasons for not releasing it for beta versions of OS 3.0 here.
We would recommend you to avoid using the unofficial QuickPwn tool to avoid losing the ability to software unlock your iPhone 3G even though a tool was released recently to downgrade baseband from 02.30.03 to 02.28.00.
It is also important to note that the beta version of iPhone OS 3.0 is only available to developers of iPhone Developer
Program so avoid downloading some leaked version of the firmware as it
needs a developer account to activate it and like any beta software, it
will be buggy (though we have heard that the second and third beta versions include many improvements and are a lot snappier).
But if you're the adventure types who doesn't care about
unlocking your iPhone 3G, you can checkout unofficial QuickPwn's
website to get more details.
As always, don't forget to drop us a line in the comments section below to tell us how it goes.