Fireside Chat: Android Design. Matias Duarte, VP of Design, Android with Josh Topolsky, Editor-in-Chief, The Verge
Google's "Android Design" Style Guide
Awakenings: An Android Design Process | Sebastiaan de With's blog
Android Design - Navigation with Back and Up
Design Principles | Android Developers
Droid UI design resources including PS, FW, & Omnigraffle stencils.
Android Design in Action: Notifications and Design Process. Google Now Card design process.