The final edits are almost all done.  I've posted the latest PDF file of the book online here.  Feel free to download it and take a look.  It's about 15 megabytes so it will take a minute or two to download.  Any comments would be greatly appreciated.
I'm thinking that the book should be ready for publishing in the next couple of weeks.  I still need to do some final reviewing and editing.  Also, I'm still tweaking on the cover.