This video shows that he is pulling note cards from his pocet.
http://www.boston.com/news/special/politics/debate_video/sept29/1.html
Wow! Just saw the Globe video, full screen (right click, click on Zoom, and then click on full screen). It's definitely a piece of paper that he slips out of his pocket and onto the lectern - very smoothly and very quickly.
Busted.