A beautifully comprehensive review of the platform over the last three years of its existence.
mobile
Patterns
UI Patterns for iOS, Android and More
lovely ui
A collection of mobile UI elements
Android Interaction Design Patterns
Mobile Life
“34,000* interviews with mobile users across over 43 countries […] provides real insight into how consumers across the world are using and interacting with mobile technology and delivers a holistic understanding of the end-to-end consumer experience and how this will change in the future.”