I received my signed copy of Pro Drupal Development around an hour ago from John K. VanDyk, and immediately rushed to the 18th chapter (on localization), to see how it shaped up at the end. I was helping out with reading the manuscripts of that chapter to help readers get the most realistic view of how locale module helps their life, what are the culprits, possibly bad routes to avoid, as well as side effects of some settings. It was a pleasure to help out on the book, and (as a result) a long time waiting for the book arriving at my house.