This directory contains samples that are distributed with the Android SDK. New top level directories (categories) are not automatically published. If you are adding a new category, you will need to add it to develpment/build/sdk.atree. Note: In the future, the samples will be built using a template system, which will automatically import the "common" directory as needed. Until then, if you need access to the "common" directory, you will need to have it copied during the SDK build process by modifying development/build/sdk.atree.