ZoomNotes is the most versatile visual notetaking app for the iPad and iPhone, allowing you to zoom in and out without limits.
Bookmarks can be used to animate through your document, presenting the information in really intuitive way. Used in conjunction with sub-documents these give a unique way of conveying the structure of your presentation. Output to the iPad screen, an AirPlay device, an external screen/projector or to a video.
Via Baiba Svenca, Mark Gleeson