If the Beast were to be nominated by virtues of the superdelegates but actually lose in terms of the regular delegate count, is there any chance that there would be enough chaos in the party that Osama might consider a third party run? Assuming, of course, that there was no deal cut for the vice presidency.
I don't see it. Even in the scenario you describe, Obama is 46. He's a young man who wants to be president, and he knows that third party will never be the way to the Oval Office.