On tv, the other day, they were talking about these devices.
It would seem that, perhaps, Apple aren't far away from an iBook - or similar.
I should imagine that a device like that would do what the iPlayer has done for the music business. It may also mean a new 'definition' on applicable software and 'downloadability' in the range of books?
Maybe worth hanging on a little longer? It means having to put up with carrying around paper books for a little longer, though. :-\