I'm guessing that this jailbreak is an exceptionally difficult one, or perhaps the dev team is simply getting burned out on putting in the long hours necessary to circumvent Apple's code. Dev Team updates are few and far between except for the beta thing I see on twitter once in awhile. They're tight lipped about this for some reason.
What I find fascinating is that there only two people in the world (Comex and GetHot) that are clever enough to jailbreak iphones. Or is it because they're the only two with enough time on their hands? For years there have been dozens (hundreds?) of software crackers, but far less who can crack the iPhone.
In any event, I am grateful for their hard work.