Firstly, this isn't a primer on coding applications for iPad, but rather focuses on best practices for application design on the iPad, covering elements from initial planning to app layout and the best implementation of user input and even use of sound. Including lots of full colour images of apps to illustrate the points made, it's a welcome concentration on the 'philosophy' of iPad app design, which is often missing from step-by-step introductions to app development. The dissection of gestures is very in-depth in particular, and if you want to get your head round the nature of this unique aspect of iPad interaction, you won't get a more thorough and comprehensive guide than in this book.
Another welcome and original section deals with the development of 'iPrint' apps for books, magazines and such like - useful to have a section devoted to the best implementation of these kinds of apps, which are not given enough time in other books, but are still a staple section of the App Store.
Despite the focus on best practice rather than the technical, it's not devoid of coding hints and tips, and entire code examples for the author's successful Alice app are included, which are great in particular for learning more about the Chipmunk Physics engine, and 2D sprite manipulation in general. Definitely an ideal follow-up for anyone past the basics of iPad development, or for that matter, anyone planning iPad apps for others to develop.