What turned out to be necessary for me was looking at the source code of the android apps themselves, rather than the sample apps in the SDK. Specifically, I developed an app that used the camera (http://ifdefined.com/blog/post/BugTrackerNET-app-for-Android...) and I couldn't have done it without studying/stealing code from the built-in Camera app: http://android.git.kernel.org/?p=platform/packages/apps/Came...