Audience response systems can be grafted on to slide decks but questions and interactivity should really be central to the iPad presentation experience. Change the presentation from a slide show to an exploration.
I don't think it was a coincidence that Steve Job reminded everyone of HyperCard during his interview with Walt Mossberg at the D conference. I don't think it was deliberate name dropping but rather he had been spending a lot of time thinking about the strengths and weaknesses of that technology because he is guiding and overseeing the development of a similar technology to be authored on Macintosh's and consumed on iPads.
This program should be akin to Garageband, iDVD and Keynote. Consumer grade software that allows an amateur to produce pro-level documents. Imagine using an interactive iPad program is the followng situations:
- Teachers could produce class room materials, such as course packs, lab manuals or study guides
- Restaurants could develop menus with wireless ordering
- Conferences could create on-the-fly lecture notes with interactive commenting