I stumbled across this interview with Apple Inventor, Steve Wozniak. He has a number of interesting things to say about inventions, but I think this thought bodes well for Exbiblio:

Then there’s the iPod. Its success is due to the fact that it’s a satellite to a computer: The computer has become absolutely central to our lives

Wozniak believes that many areas in technology are swamped and that perhaps there should only be a dozen companies making computers. The industry is mature, and it’s hard to come by new inventions. But clearly he believes that an invention that is a satellite to the computer has lots of mileage in it.

From what I’ve seen of Exbiblio’s technology, it is about making the good old-fashioned book orbit around the computer - in fact, if Exbiblio suceeds, the book will be the ultimate computer satellite, perhaps even cooler than the iPod.