[Hiddlebit]

Constitutionally we cannot have a situation where we have no government, but until Cameron and Clegg have stopped dancing, they are not going to take over. So Brown has to stay on until a deal is struck. No choice in the matter.

And you can bet that he's fervently hoping that the other two can't come to an arrangment, giving him the chance of not having to call the furniture removers for a while!