Index: nodereference.module
===================================================================
--- nodereference.module	(revision 1550)
+++ nodereference.module	(working copy)
@@ -148,6 +148,10 @@
       'label' => t('Teaser'),
       'field types' => array('nodereference'),
     ),
+    'nid' => array(
+      'label' => t('Raw Node ID'),
+      'field types' => array('nodereference'),
+    ),
   );
 }
 
@@ -202,6 +206,9 @@
     case 'plain':
       return check_plain($titles[$item['nid']]);
 
+    case 'nid':
+      return $item['nid'];
+
     default:
       return $titles[$item['nid']] ? l($titles[$item['nid']], 'node/'. $item['nid']) : '';
   }