ih8sn0w has just announced the released of iFaith 1.5 for Windows - iH8sn0w.com: iFaith v1.5
Whilst the new version of the tool does not add the capability to retrieve blobs from the currently installed version of IOS on your device (booooo), it now has the feature to retrieve the latest blobs to which you are entitled to from Apple. In other words, it adds similar functionality to that which TinyUmbrella and redsn0w already have. One advantage over redsn0w is that iFaith does not require you to provide the IPSW file before retrieving blobs.
So folks now have 4 choices when saving blobs - Tiny Umbrella, redsn0w, iFaith, and iSHSH it. I will update the various SHSH Blobs posts when I can