Is Event.EXITING supposed to be supported in mobile?

Hi,

I'm trying to execute some code on app closure in my Flex app running on Android. Trouble is, this code only catches the event when testing in simulator on desktop:

NativeApplication.nativeApplication.addEventListener(Event.EXITING,comscoreApplicationExitHandler);

I haven't been able to find a reference to the event being unsupported on mobile, but that could be my oversight.

Does anyone know whether this is a bug or a feature?

G