The dev team is on the ball, as expected. I never upgraded to 2.2.1 because I did not want to bother with it. Note, QuickPwn has been updated to version 2.2.5-2 for the windows users. Remember QuickPwn and PwnageTool are not the same things.. so read up.
Here is the link
http://blog.iphone-dev.org/
Remember, normal rules apply, dont do this unless you know what your doing, and read the rules!!
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