Since Spirit jailbreak release is on the horizon, it is time to save your SHSH blobs so that you can jailbreak (by downgrading) your device again should Apple release a new firmware once the exploit is public. The following two paragraphs explains what are SHSH blobs and why is it important to save them now.
Remember those old days when you simply pointed your browser to a website and voila, you had an instant jailbroken iPhone? Those were old iPhone OS 1.x days. The same technique for jailbreaking may be possible again, unless and until Apple patches this exploit in the upcoming firmware.
