I'm jailbroken 3.1.2 interested in upgrading to 4.0 but jailbreaking after. I would stock upgrade through iTunes but I missed that window because I've heard 4.0.2 is not jailbroken yet. I sent a request through Cydia for an SHSH blob (could someone please explain to me what these are?) for 3.1.2. Do I need to do something else and how can I upgrade without having to use a backup of all my stuff to restore to my iPod afterward? (no shift click restore) PS Cydia says "this device has a pending TSS request" What does it mean? Out of curiosity. PPS Can I do it without going into a bootloop, and is there a way to tell if I will?