Google has just wrapped up the Android Developer Challenge that it announced back in November. Android, of course, is Google's Linux-based mobile platform, slated to show up in a wave of new mobile phones later this year. The developer challenge put up $10 million in prize money, with prizes ranging from $25,000 to $275,000 for applications that panel judges deemed to be innovative. eWeek has a slideshow of ten of the award winners and here are some thoughts about what these applications say about Android and open source.
Here are ten of the winners in the Android Developer Challenge, as reported by eWeek:

As you can see from eWeek's collection of ten award-winning Android apps (make sure to look at the cool screenshots), far-flung developers are creating very diverse applications for Android. This will be absolutely necessary as we start to see Android-based phones begin to compete with other phones.
 In fact, I think Google should not stop at just $10 million in prize money, and set up a business development fund for Android applications. Apple has a $100 million fund to seed iPhone applications, and RIM has just announced a $150 million fund to seed Blackberry applications. It would be great to see financial incentives put in place for open source developers who would like to build useful applications for Android. One thing's for sure: The more competition we see from open source efforts on the Android platform, the better.