I think Obama's huge margin of victory in many of these states combined with the sheer number of states he has won has taken the above option out of play. Obama voters will now not be content with anything less than the nomination, and any kind of trickery or smoky backroom manipulation of superdelegates by the Clintons to take away what is now perceived to be Obama's, will not go over well at all.
The notion that Obama's base will follow the Clintons like lemmings if Obama gets the nomination stolen from him should now be discarded.
I also doubt very much that Obama, having won the nomination, will even consider the Clintons as his running mate. Why would he? It would provoke the same reaction among us should a true conservative win the nomination and then pick somebody like McCain for a running mate.
Like I said on another thread last night, there were strong rumors this weekend on the trail that John Edwards was going to endorse Obama tomorrow afternoon.