The document discusses fragmentation in the Android platform and opportunities for competition and cooperation. It identifies three types of Android platforms: standard Google phones, Android powered phones with custom UIs/services, and specialized Android devices. While fragmentation poses challenges, the document argues there are big opportunities for developers if Android supports a common native/managed/web platform across devices. This would provide compelling returns through a single marketplace and development tools to reach multiple OEMs/carriers. Cooperation across device types could accelerate growth.