well one, i know it won't happen, she's gonna drag this one out. but secondly - i'm all for her staying in the race, she's a LOT more polarizing than Obama, just about guaranteeing a Republican win.
...and with her angry quest for power, even if Obama did win a nomination, I still see her staying in the race. Won't make the Democrat Party very happy, and will help dilute the left votes. Win/Win!! heh.