Samsung Galaxy Z, example a of modern Android phone
The Android Developer Challenge (ADC) was launched by Google in 2008, with the aim of providing awards for high-quality mobile applications built on the Android platform. In November 2009, the winners of Android Developers Challenge II were selected after two rounds of scoring by thousands of Android users as well as an official panel of judges. The overall winners of ADC II were SweetDreams, What the Doodle!? and WaveSecure.