So the jailbreak released today supposedly, every one said to use the redsnow beta to point the firmware to the GM version. I did the shift restore the official firmware, but now it feels like the GM version because there are bugs and my ipod in general runs very slow. iBooks is not working, in another thread it might be the case of "pointing to the GM." How do we know we just didn't jailbreak to 4.0 GM again??