I think you’re very right about this. The Clintons realize they can’t take the nomination from Obama at this point without the black population rioting and subsequently not voting at the 90%+ level required for democrat victories. The important thing for the Clinton machine now is to assist Obama to lose badly.
Particularly given her age it's hard to imagine them truly wanting Osama to prevail in November.
Bingo. 4 years (2012) is really not that long.