WinPwn, the windows version of Pwnage is available now to download in beta form. The WinPwn web site says:

This is winpwn-0.99.1.8BETA. I have disabled 2.0+ support since it’s still buggy. Hopefully with people beta testing i will get allthe bugs worked out within a few days and you will get a final release including 2.0+ support.

You WILL be able to flash custom ipsw’s made with mac pwnage if you wish to upgrade to 2.0 and can’t wait for final winpwn. For now i have also disabled most of the custom options including the applications (installer is still there) and the unlock base band features. Once i’m happy it’s stable i will enable those features for testing. I will post a more detailed breakdown of how it works (YES THAT IS QEMU) and why i choose to use qemu.

You will require the iTunesMobileDevice.dll and you will have to put it inside the winpwn program files dir. iBooter support has been disabled since i haven’t tested it yet. So you are stuck with iTunes for beta release. NOTE: YOU MAY NEED TO USE REGULAR RECOVERY MODE MANUALLY IF WINPWN DOESNT DO IT ITSELF.

WinPwn can be downloaded from here