I was able to install the .apk on the emulator. But it's not clear to me how to use the cocos library in my own project. Is there any documents that shows how to do it?

Building from source and then adding the two .jar files into eclipse's project. But I get an error that says there is a duplicate entry AUTHORS.

I will appreciate you guidance.

Thanks,

There is a template here, it might help:

http://code.google.com/p/cocos2d-android-1/downloads/detail?name=cocos2d-template-versioncode5.zip&can=2&q=#makechanges

Don't install from apk. Check out the code and add it in your project.