Did somebody say "Chrome"?
It would be practical if Amazon was willing to deploy some type of desktop application. On any given screen of Amazon, it usually only holds about ten titles (down the center of the screen). Now, if you expand that into a 3-D book aisle, it would be a matter of piping the title information to the client app. I don't know if it would be wise to use a browser for that or not. If you think about an aisle full of books in a typical library, for instance, all you usually see on the spines of the books are titles. Pictures only become an issue when you slide a title out and look at the cover. What would be nice is if you could walk down a virtual aisle of books and have Amazon populate the titles with a) things similar to what you have bought before, or b) random suggestions that might lead you to new topics.
You know what? You've just given me a great idea for something I'll do here on Channel 9. Give me few days and I'll see if I can code something quickly to show you what I have in mind. I'm not familiar with DirectX at all, so the interface might be a little poky until I figure out something better. I was going to do another "collage" thing, but I've got a much better idea.
I thought I heard last year that Amazon was working on such an app.