I would really like to have an e-book version of Universalis. And by e-book, I don't mean PDF (although a PDF would be better than nothing).
Since there aren't a whole lot of charts in Universalis, it would work great as an ordinary e-book e-book, like an EPUB or Mobipocket file. You could even put it on the Kindle through Amazon's Kindle self-publishing program. A number of self-publishing writers are doing that, for example here's how young-adult writer Henry Melton self-e-publishes (http://henrymelton.blogspot.com/2009/03/pricing-my-books.html), including at Amazon.
I would really love to be able to stick Universalis on my iPod Touch and read it from my pocket rather than having to carry the book around.