This is most definitely a wish list with little hopes of seeing results. Even if Sony wanted to, I think it would be hard for them. I'm sure they are already trying very hard to expand their list of available books.
But I know there are some books that we'd really really like to see, and it's good to have a place to share our longings.
I'll start out with the book I really want to read. Recently, my reading list has been basically frivolous things that are purely relaxing recreation. But one non-frivolous book that I really want to read on my Reader is the following:
Warped Passages by Lisa Randall.
Lisa Randall is a Harvard professor who explains particle physics to us. I heard her on a televised seminar once, and she's a great speaker. I'd love to hear updates from her as work on the new supercollider completes and we start getting answers back on some of the big questions that can even help determine whether current string theory and brane concepts might be right or wrong.
Then after reading it, I'll go back to my frivolous books for a while to rest my brain! ;-)