Index: Sites/wordpress-trunk/wp-admin/import/wordpress.php
===================================================================
--- Sites/wordpress-trunk/wp-admin/import/wordpress.php	(revision 13805)
+++ Sites/wordpress-trunk/wp-admin/import/wordpress.php	(working copy)
@@ -262,7 +262,7 @@
 	<option value="0"><?php _e('- Select -'); ?></option>
 	<?php
 		foreach ($users as $user) {
-			echo '<option value="'.$user->user_id.'">'.$user->user_login.'</option>';
+			echo '<option value="' . $user->user_id . '">' . $user->display_name . ' (' . $user->user_login . ')</option>';
 		}
 ?>
 	</select>