WCF SDK Question:

Android application architecture allows the simplification and reuse of any application. It provides a better way to publish the capabilities of the application so that any other application can make good use of those capabilities.
This architecture includes the following components:
Intent: perform some operation on some activity and service
Resource Externalization - such as strings and graphics
Notification signaling users - light, sound, icon etc.
Content Providers - sharing of data between various applications