finally installed the newest build (74, 2. July).
So far so good. GAL now has email and phone number (though only main number, no mobile), my calendar gets some more infos (so far a few all day events, but far from everything)... on the downside: for some unknown reasons, the 'Frequent Contacts' addressbook is now in the default sync list (all address books active for all users). Are you kidding me? I don't want to have the Frequent Contacts synched to all mobiles.. if a user needs it, ok, I can add it, but no way it should be active for all...