rofessional Android 2 Application Development (Wrox Programmer to Programmer) http://www.amazon.com/Professional-Android-Application-Development-Programmer/dp/0470565527/ref=sr_1_1?ie=UTF8&s=books&qid=1274289231&sr=8-1 This has about 13 comments with the majority being 4 and 5 stars
And this one for the Java reference. Java: The Complete Reference, Seventh Edition I am not allowed to post more than one hyperlink. But Amazon carries this book as well
I am picking these two books because of another popular thread saying I should have an Android book and a java reference but no one mentioned a book for either. I figured I'd go with the highest rated in for each of those criteria.
I didn't know if I could ask a question in the same thread about what books so I figured it was better to start a new one.