The applications "SweetDreams," "What the Doodle!?" and "WaveSecure" were the overall winners of the Google's Android Developers Challenge 2 (ADC 2).

The ADC competition was started by Google with the intention of boosting mobile application developer numbers and raising the standards of applications designed for the open-sourced Android platform.

Mobile phone application developers participating in the ADC 2 were awarded for their ingenious use of the mobile phone platform to create new and inspiring mobile apps.

Google announced the winners of the application design competition on their official Google blog page on November 30 with the applications "SweetDreams," "What the Doodle!?" and "WaveSecure" gaining the title of Overall Winners.

Winning projects included an application that wakes you when you get close to your destination; an app that senses the ambient noise around the user and adjusts the ring tone volume accordingly; a Pictionary-like game for Android phones; and an application that automatically changes your phone's settings when you go to sleep.

Outstanding examples of application design for the Android platform and a list of the top 200 application entries can be found on the dedicated page.

Overall Winners
SweetDreams - SweetDreams is a revolutionary tool that will finally allow you to go to sleep without worrying about changing your phone settings in order to avoid unwelcome late night calls. You can even use those inactivity periods to save battery power as well, and of course forget about enabling WiFi, Bluetooth or ringtone volume ...

What the Doodle!? - 'WTD!?' is a real-time online multiplayer game where one player tries to draw out a given phrase and others try to guess it. Features FFA and Team games, Global Highscores, Personal Face Doodles, integrated Voice Recognition and more! Real-time drawing!? Built for performance, you'll really see the magic at first doodle!

WaveSecure - WaveSecure is a complete mobile security solution that protects your device, data and privacy: "1. Track your phone's location and who is using it 2. Lock down your phone remotely, making it worthless to the thief 3. Backup all your data 4. Wipe out your data remotely 5. Restore your data. May the phone be with you!"

Education/Reference Winners
Plink Art
Word Puzzle

Entertainment Winners
A World of Photo

Games: Arcade/Action Winners
Speed Forge 3D
Moto X Mayhem

Games: Casual/Puzzle Winners
What the Doodle!?

Lifestyle Winners

Media Winners
Buzz Deck

Productivity/Tools Winners

Social Networking Winners
Ce:real - Everyday trends

Travel Winners
Trip Journal
iNap: Arrival Alert
Car Locator

Misc Winners
Rhythm Guitar
Calton Hill GPSCaddy