I have been making Android apps for about 2 years but I am mostly self taught (with a generous amount of help from StackOverflow). I have a few Android books, but they weren't too helpful and I bought them so long ago that they only covered up to Android 2.1, so I decided I needed to upgrade. I bought this book mostly to learn about Android 4.0 specific features, but it is so much more than that. This book will teach anyone who has at least some experience with Android to be an elite Android developer.
Stephenjoe,
Sr.Software Engineer.