In the post race interview, Contador said that he hadn't realised that Schlek's chain was off. From the way he said it I figured he was lying. And from the slow motion replays he could see perfectly that Andy had had an mechanical something or other. Then he apologised later, so he definitely knew. But he's too nice a person to be a real villain so I felt a bit sorry for him when he got booed.
Poor Andy tore up that hill after them like a condemned man -impressive. And made for a very exciting finish.
However, I think Sanchez (my personal favourite) and Menchov have come out of this better than anyone and may even push Schlek off the podium. But after Contador launched that attack they had no choice but to follow I suppose.