I have just opened cydia to find that it says it hassaved the 4.2b3 shsh blob. I did a quick google to find this my girlfriends 3GS doesn't have this saved. But does have them all going back to 3.1.2. That site seems to think you will need that blob saved to give an untethered 4.2 jailbreak, does it mean either that or 4.1 will do? Does anyone else have this saved or heard anything else about it? There is no mention on the tinyumbrella site, so we cant request it and save it locally.