> 1) If I do use the backed-up preferences database, I assume by the comments
> that there is no way to have it automatically deleted if the app gets
> removed.
> Can anyone correct me?
Actually, I think that an application's preferences are supposed to be deleted
when the app is (i.e., when the user deletes it using the launcher). If this
isn't happening, its probably a bug. I suspect that some developers may have
saved preferences in the Saved Preferences database with a creator code other
than their own (when you save prefs, you specify the cretor code of the app to
file them under)... this might cause them to be left behind when the app is
deleted, but you shouldn't do this because its impolite to leave little
droppings behind on your users' devices.
Jesse