FAQ Q11. I don't have IOS version x.y.z installed on my iPad, so I can't get SHSH for it, right?
NO! - You can quite happily request and receive blobs for 4.3.3 even if you are back on 3.2.2 provided Apple is signing 4.3.3 today. What you cannot do is request blobs for 3.2.2 today from Apple as the window for that version is well and truly closed. But, iPad1 owners now have the added bonus with iFaith that they can also extract the blobs for their current firmware, even if Apple has stopped signing that version!