At time of this review this book is still in "beta", though I've followed its development since the earlier releases. I have to assume it won't change much given that the publication date is apparently less than a month away.
Wins: When I think of the Pragmatic Programmers series, I think of high value purchases with easy to follow examples and clear concept explanations. Great stuff. So if you're already familiar with other Pragmatic Programmers texts this will be as you'd expect. I appreciate how the initial examples start with UITableViews and the new iPad-specific UISplitViewController since many applications will use both of those.
Caveats: You should know Objective-C *before* reading this book, and I would also recommend a primer on iOS (iPhone OS), as well. Much of the content (such as core library usage) will apply to both iPad and iPhone hardware devices, but "iPad Programming" does NOT contain a tutorial on the language itself. "iPhone SDK Development" (purchased from PragProg) and "The Objective-C Programming Language" (free via your Apple Developer Connection membership) are both great primer material.
Even if you know C/C++, Objective-C syntax looks... odd... when you first start, and the dynamic nature will cause you some hair pulling during the early learning process. If you're coming from Java or C/C++ and just grab this book and jump straight into the deep end, expect some frustration. If you're already a little familiar with Xcode, iOS and/or Objective-C, though, iPad Programming will do you just fine. :)
Overall rating: 3.5/5