The open-source code for the card.io-Android-SDK: provides fast, easy credit card scanning in mobile apps
Open-Source Android Apps
"ST BLE Sensor" Android application source code.
This is the source code for Thunderboard application for Android.
Source code for the second edition of Head First Android Development
Source code for the GR8Conf Agenda Android application
Source code for the WSDOT Android application
Source-code used in Kiwi Browser for Android
The source code for the course "Building Scalable Apps with Google App Engine".