The Next-Generation Digital Book (via TED video)

In this TED video, Mike Matas demonstrates the first full-length interactive digital book for the iPad, iPhone & iPod touch published through Push Pop Press.  It's an absolutely fascinating look at the future of reading as well as information and media literacy instruction possiblities.  However, once you get past the dazzling innovative technology, is it really a better way to teach content?  I guess that's what we in the literacy/library/technology/media/ education profession need to figure out...