Take a gander at this device called the Book Saver. With the use of little hanging camera technology, this ingenious tool claims to digitize a 200 page book in about 15 minutes.
While not nearly as effortless as a CD ripper, the advent of this technology is worrisome to publishers. It is worth noting that the Book Saver still requires an actual person (or monkey) to turn the pages and the speed of scanning may be affected by page turning dexterity. Nevertheless, this type of construction versus the old face down book cradle scanner is fairly revolutionary.