When I am in the "All Address Books" View, there is no way to know, where the found contact is stored. The "All Address Books" is logically my primary go to, when I am searching for any contact information. So when I want to find out where a contact is stored I have to look in every single adress book to se where it is stored and where not.
It would be nice if a field would show the adressbook the contact is stored in or if the search results would not only show the Name and email but also the adress book the contact is contained.
I might want to reorganize the location where a specific contact is saved. The current state makes it merely impossible to do so.