Download AutoSHSH: http://www.mediafire.com/?dznm5a5mkcw
Back up your SHSH blobs for Mac tutorial: http://iclarified.com/entry/index.php?enid=9189
This is a tutorial on how to use AutoSHSH, a program made by ih8sn0w to allow you to backup your SHSH blobs for 3.1.3 (for iPhone and iPod touch) or 3.2 firmware (for iPad). By doing so it will allow you to restore your device back to the firmware you are on currently so that you can jailbreak with Spirit again in the future. I also discuss the upcoming untethered userland jailbreak for all models of the iPhone, iPod touch as well as the iPad, Spirit.
Intro music by Kevin MacLeod.