If this has been answered, sorry, I searched and couldn't find. I got a 3GS 2 weeks ago, so it came with 3.1.3 and the latest baseband, etc. I jailbroke 3.1.3 with Spirit, so my SHSH is on file with Saurek... I upgraded to the iOS 4.0 GM when it came out. I'm curious if I can now use this method to revert to 3.1.3 and re-JB and then unlock with today's new tools: http://www.iclarified.com/entry/index.php?enid=7556 Is this method applicable to my situation, or am I stuck and have to wait for a 4.0 jailbreak and unlock?