The Holy Grail of electronic ink technology is a digital book that can typeset itself and that readers could leaf through just as if it were made of regular paper. Such a book could be programmed to display the text from Ernest Hemingway's "The Old Man and the Sea," and once you've finished that tale, you could automatically replace it by wirelessly downloading a different book.

You may be able to alternate between 10 books or more. Your newspaper would be impacted greatly. No more paper boy. Just download the Wall Street Journal to your EPD.

Interesting. Looks like it would work like the movie screen (canvas) in a theater.