I saw nothing!
Amidst all the debate over whether it was sporting for Contador to attack Robbie Hunter summed my feelings up best:
“If Contador had waited he would have won the heart of the world. Like this he got a yellow jersey on his back, but it’s always gonna be a (question mark).”
For those who keep saying Contador didn't see what happened.. er.. BS as shown in the pic above. This was pretty clear on the eurosport feed. Maybe an overhead shot on Versus obscured the sequence because you couldn't tell he had dropped his chain until after Contador went by. But the head on shot I watched was pretty clear that he had gapped Contador (who originally tried to get on his wheel but had opened the gap)and only after he dropped his chain and it was clear he had did Contador react.
Update: Even Contador agrees with me!