This by far is the BEST jailbreak for AT&T activated iPhones.
RedsnOw worked ok, but Spirt does it's job and dosen't slow down the iPhone at ALL.
The only thing I found that was a problem, is that most programs like PC Suite for the iPhone does not recognize that your iPhone is jailbroken. With a little reserach I found SSH Services in Cydia which let's programs know that your iPhone is jailbroken.
Hat's off to comex and chpwn for this awsome jailbreak. :D