I know it's an app but it's a book... I think you will see more "books" released as apps, especially the way 4.0 can handle "folders" of "apps" so you can have a books folder.
This is not how most people want to read newspapers, that's not the point. The point is that it is a new way to interact with a book. It also gives a book a lot more "replay value" if there is interaction. Now, let's imagine comic books for older kids where you can make a choice in the story. One time thru, you can be the hero, another time thru, the villain.
I hate the fuddy duddies who think this is somehow bad for literature. It actually is making it relevant for a new generation of kids who learn thru interaction. Those kids will eventually become adults and have the same expectation from their media.
Accept it, this is the wave of the future, don't like it, fair enough, send a telegram to whine about it or maybe tell your milk man.
ash =o)