The guys over at the iPhone Dev Team blog have just posted a new version of QuickPwn which is supposed to support 2.0.2! I haven’t tried and I probably won’t as I’m going to wait for the release of WinPwn 2.5 but you guys can check it out. (Here) is the link. Hopefully it works out for you because when I tried it out on 2.0.1, my phone was messed up.
*Update: Forget it, I’m trying this, I can’t stand having a non-jailbroken iPhone. I will let you know my results after I’m done.