You could also use File flags and Smart Groups. Once your device is
selected for wiping copy or create a file on the device and have a smart
group that searches for that file, you could also use email notification
to get notified when devices are mov...
I think the easiest way to remove installed App from the scope of Self
Service is to scope them to a list of iPads that do not already have
that app installed using Smart Groups to ID iPads with and without your
desired App.
