Looks like some competitors are a little concerned about Contador.

From Gazzetta dello Sport...
A brief survey of opinions at the finish line of the sixth stage. Franco Pellizotti, "Now the others have to prove something. Some people want to win the Giro, but you’ll see that they won’t even get to wear the pink jersey. Contador and Klöden have saved a lot of energy, you’ll see that in the time trial they’ll leave everyone minutes behind.” Paolo Bettini, "Contador is in great form, he’s getting better every day.”