Cool. Pity it strikes me as BS (it is just so freaking Rube Goldberg), unless the US stays around to police it all. That won't happen. I did read in the WSJ I think that Turkey is rethinking its opposition to a Kurdish state, but would freak if they got control of the northern oil fields. I guess a Kurdish state, as an autonomous Scotland plus or something, is OK for the Turks, as long as it stays impoverished.
Might I add, however, that if civil war does break out there is little reason to expect that the ultimate solution will prove that far different. There is little evidence that the Shiites would be capable of subjugating the Sunni, and in fact it's quite likely that the Shiites would fracture amongst themselves. Most likely, the Kurds would swiftly move toward independence, Baghdad would become a bombed out shell like Beirut, and the Arabs would pound on one another until they exhausted themselves into some kind of agreement.
Kirkuk would be a big mess too..