This is a good idea. PDFs are available, but I do not think the
formatting of the eBook for 3.3 (done by Lulu) is very good. Creating
a well-formatted eBook is not easy, because our template
contains features (including the tables for tips, notes, cautions, and
the use of custom styles for headings, among other things) that do not
convert well. This is a big reason why I want to change some things in
the template. Dan Lewis has notes on how he hacked the conversion of
one chapter, but we need to improve the template and the process.
--Jean