Here is my mockup for how the webinar reader would work. The basic functions are there and the functions have both menu commands and gestures, for easy access. I included som of the intended UI functions and gestures, so that you could get a feel for how the app could work. I intentionally left two of the menu buttons clear since I dont know what functionality you are looking for. Also most of the screens are shown without a menu since I belive that that is the way it will be used. The menu will be brought up when needed by a quick gesture. Hop you like it and I look forward hearing from you.