thank youThere is no way to do it with iTunes, but there is a tool in the works that will allow you to do it. You just need to be patient and wait for the new release of Redsn0w, which will allow a phone currently at 5.1.0 or 5.1.1 to be restored to the same firmware (provided you have saved your SHSH Blobs). But you must wait; if you upgrade to 6.0 you will never be able to return to 5.x.
Haha. I like it. I'm gonna one up you. I'm just gonna include a link to the main iOS Hacks section here at macrumors since there's 15 threads on the same subject!Perhaps we should add the info to all our signatures ?