Last night saurik a announced that the notices from Cydia looking SHSHThe saves have been restored, so now you can see what SHSH-s you have saved, for which firmware and implicitly to which firmware you can restore without problems.
I remind you again that SHSH- are required ONLY for owners of iPad/iPhone 3GS/iPod Touch 2G/3G(new bootrom), for the rest of the devices it is not necessary to save/use files SHSH.
