Google Developer Group (GDG) / GTUG (Google Technology User Group) is organising DevFest which includes series of sessions on Android, HTML5 and more. Some of the sessions include
  • Eclipse for Android: Tips and Tricks.
  • HTML5 + CSS for animation
  • Optimizing Battery consumption of Android apps.
  • Connectivity: What's new in Android 4.1 Jelly Bean
  • App Engine Services Read More →