The Arduino Programming Notebook is now officially published in First Edition. It can be downloaded for free as a PDF or you can pay the publishing cost to buy the 40 page booklet over at Lulu: http://www.lulu.com/content/1108699 Their print quality is really good and well worth the $5.33USD plus its awesome to support a company with a service like theirs.
This is the First Edition and while I made some changes since you last saw it, I just didnt have time to throw everything in the notebook that I wanted (or for that matter all the good suggestions from others) so I will keep this document fluid and try to have a revised edition out in the next 4 or 5 months with more schematics, pictures, and code. For now though I feel its a pretty darn good start and hopefully someone out there gets some use out of it.
Hope you all enjoy. Brian
PS, Ive also updated the manuals section in the playground.