Transformers Revenge of the Fallen teaser?

I have watched the teaser a couple of times. I was wondering if anyone shared my opinion that they show the Fallen in the trailer. I think that it's the big robot at the end that breaks through the bridge and Optimus jumps on. He's also earlier on, he is like spinning around and I think he attacks a helicopter. But definitley the one at the end. What do you think?