Getting Beyond the Basics
Android is a vast platform, more than one book can reasonably handle. CommonsWare has kept its original book focused on getting basic applications going.
However, slick applications will use more than just the basics. You will want home screen widgets, or tight integration with the Quick Search Box, or to expose APIs from your application to third parties. It is those sorts of topics that you will find in this book, and the roster of those topics keeps expanding with every new release.
More Than a Book
We also have a support Google Group for readers, to help answer questions about the book materials and examples.
Further Reading
Many of the techniques described in this book are included in later chapters of Android Programming Tutorials.