Yeah, I also thought about a device with the possibility of an ancient scroll, so that you may decide if you need a small screen for pure text or a larger screen (vertical or horizontal flipping included) for more graphic oriented layout like in magazines or comic books.
Of course you'd need a flexible screen material for this, though they already exist.
Always like the big handle of the Rocket eBook. Gave you something to grab, and it was a nice, fitting place for the battery.
