I agree with mrmo – its in Contadors hands.
As for Wiggo and doping I don't think it should be a surprise that a triple olympic gold medalling winning rider can excel at a slightly different discipline of his own sport. He has clearly changed his training regime and reckons to have lost 8 kilos.
and glenp – Armstrong is still 2nd. I agree that he will probably support Contador rather than attacking him (as he appears to be doing now) but I felt watching the stage up to Verbier, and the stage yesterday, that he was probably testing himself to see how felt. Yesterday he clearly showed that he was strong enough to attack back after initially being dropped.