The downside of higher quality images is much larger file sizes. So there are now actually two versions of the book available. The high quality version is a 5.5mb download; the medium quality version is 2.9mb. Both offer significantly nicer graphics than did the first release, and the high quality version is especially suitable for printing.
There are also about 10 new hints, a number of modified hints, a new three-page overview of the OS X folder structure, a "command line vs. GUI" comparison table, and another dozen or so online resources.
So if you didn't like the image quality in the first version of the guide, download the new and improved version.
December 11 Update: I invested in Acrobat 5.0 tonight, so there's a new copy of the guidebook online. The version number is the same, and there's no new content, but all the URLs and email addresses are now functional links, and there's a rudimentary bookmarks section to quickly jump from chapter to chapter. Sorry for the rapid update, but I thought the bookmarks and links were worth it.

