Android Developer Challenge
http://code.google.com/android/adc/

Cool apps that surprise and delight mobile users—built by developers like you—are a huge part of the Android vision. To support you in your efforts, Google launched the Android Developer Challenge, which will provide awards for great mobile apps built on the Android platform.

For each of the 10 categories:

Google's Android Developer Challenge: providing awards for great mobile apps built on the Android platform

swoosh photo

photo essay of tough guy challenge

cool

via jeffcane