Why don’t we have tons of dynamic, interactive, visually stunning e-books? The potential has been there for years. It has been there since project Gutenberg launched its e-text repository. It has grown with the first experiments in hypertext fiction and interactive adventure stories. The development of programming languages and scripts, advances in graphic design using HTML and CSS, all opened the doors to possibilities for building better books. Yet when I downloaded Calibre the other night and finally catalogued all of my 1,016 e-books, I was struck by how little evolution we’ve seen in the book. Most were plain text. A few had pictures. At one time websites were just text…