Looked to me like it is a notebook cover, or leather cover of a PDA. He clearly folded something OVER what ever it was. Didn't look like unfolding paper to me.
Question... when people use ear phones, don't they need a power source? Do they have wireless? I don't know, just a thought since I saw a posting that a radio host this evening suggested at the end of the debate he removed something from his ear.
Could have been a beeber.