The alpha for my Unity book is available on the Apress site - http://www.apress.com/9781430248750

Currently, the alpha contains the first five chapters in a close to final state (I think) and an earlier draft of the rest of later chapters. The example projects are available on http://github.com/technicat/LearnUnity

Thanks to dreamora for acting as the technical reviewer. Of course, all errors are mine (or maybe the editor's).

Feel free to post any questions about the book here.

I think I'm allowed to post a limited amount of content, but I'll probably wait until later, maybe when the final print is ready. And once it's on Amazon, at least as an ebook, I'm sure there will be an easy-to-view sample. For now, I'll defer to Apress on the promotion (I actually didn't realize the alpha was available until I happened to check the site).

The book is supposed to be an introduction to Unity AND and introduction to iOS development with Unity, so the first nine chapters are about general Unity stuff - first chapter on installing Unity, second on getting around the Editor and customizing the layout, third on creating a scene, fourth introduces scripting and using MonoDevelop...the iOS stuff kicks in on chapter 10, going through how to use the Unity Remote and iOS Simulator and then building to devices after getting set up with an Apple developer account. Right now, I'm wrapping up the final chapters on Game Center, iAds and optimization. I use a bowling game as the main example through most of it (basically a simplified version of my HyperBowl game, but actually better than my Fugu Bowl game on the App Store since the book implements complete bowling rules)

You might get a decent idea of the book from the project examples on github - there's one for almost each chapter. The book makes use of free assets on the Asset Store which are not present in the github projects, but they are still mostly functional. If you're scouting for a complete Unity iOS book right now, you might check out Jeff Murray's Unity iOS book from CRC Press (I can't remember the name offhand) - it uses a racing game as an example. I think I might have the first Unity iOS book for Unity 4, though (not the first Unity 4 book, though - I see Sue Blackman's book has been updated)

Edit: If I remember correctly, I'm allowed to post some content from one chapter.