Imagine: interactive paper fitting seamlessly into traditional, paper-bound books. So much so, in fact, that the last page in paperback novels will be equipped with electronic "you might also like" and "coming soon" sections, piped in directly from Amazon.com and other internet sources. The pages themselves will be interactive, so the reader can "navigate" by following links on the pages to, for example, buy the new release from the author for that book they are navigating from.
Imagine: a Moleskine PC with 200+ pages of "electronic" pages that is the same size & form factor as my current journal. When this thing exists, I'll be able to write on pages, draw on pages, or view web content on the pages. I'll be able to bookmark web content on one page, flip to another page, draw and then bookmark another piece of web content on another page. Years later, when I pull the journal off the shelf, each bookmark is there as a snapshot. Similar to tabbed browsing in Mozilla, with the added ability to flip through the pages instead of clicking tabs.