For Windows Phone applications, tombstoning is the process in which some data about the application state are saved upon app termination so that this state is re-created if the user navigates back to the tombstoned application (in order to simulate multitasking).
As I have noticed, logcat returns always 34 lines of crashlog, like this: 4cf7c700 401c0000 4cf7c704 48463ff0 4cf7c708 44…
android stack-trace logcat tombstoning