As you may know, Google releases the source code of their Google I/O app every year. This allows developers to pick the code apart and use them as examples for their own apps. Google tends to try new things with their app every year so this should give developers a good collection of examples to use alongside those already available at their developer site. If you want to see the underlying code that made this Android app tick head to the source link to get started. Be sure to click the “Source” tab at the top of the page. [Google Code]
Interesting stuff, I’m downloading this right away..
http://www.howtodevelopandroidappsnow.com