This is a response to VC 22 Paul 6 ("21st Century Books")...
I saw this same article in the Journal at work and found it very interesting.
My dad and I often talk about possible computer applications. One of his ideas is the bookstore of the future. It would have every book ever published in the entire world available to its customers, as the books would all be on CD and printed for each purchaser. Has anything like this been done yet?