I am also interested in PDF files for Aaron and Joe’s books for the following reasons:
I never thought I would ever prefer PDF files to actual books, but I was wrong. PDF’s are much more convenient when coding because, for example, you do not have to be physically handling the book as you follow along. I have always had a heck of a time finding book stands to hold these books correctly. In addition, my eyesight is not what it used to be and PDF’s never suffer from poor lighting, etc. The PDF is just a tap away and no holding required;
Today I was trying to work on the Blocky project (Chapter 27) in the 3rd Edition of iOS Programming book. Xcode 5 was not accepting the book code. I downloaded the book projects and noted that the Blocky code did not match the book code. A ‘head’s up’ from BNR could have been broadcast to all registered book/PDF user’s and we’d have been good to go with a fresh PDF download;
For the sake of completeness, I should also mention that code snippets can also be copied from the PDF and pasted into your project, if that is your preference. Personally, I prefer to type in all of my code, but others may not be so inclined;
Again, speaking from recent experience, loading my iPad with the PDF file makes this knowledge easily portable. I normally read in bed before falling off to sleep and my iPad is usually in my hands. Life is short, so I use all of my time to try and keep up with this technology as best I can.
To be clear, I am not an iBook fan. I am an avid book reader, but prefer actual books. With regard to coding books, if the contents are not absolutely current with the changes that Apple seems to make just after a book is released, then problems await both reader and author. A freshly downloaded PDF is the simplest way to stay in stride with Apple, IMO.
None of the above is meant to suggest that the price of this knowledge should be reduced. I only hope that the author’s will at least consider making PDF’s an option for their next books. I have two more of their books pre-ordered and it would be awesome for them to make PDF’s available to all of us.