Index: wp-admin/post.php
===================================================================
--- wp-admin/post.php	(revision 11605)
+++ wp-admin/post.php	(working copy)
@@ -63,6 +63,8 @@
 		$location = add_query_arg( 'message', 4, get_edit_post_link( $post_ID, 'url' ) );
 	}
 
+	do_action_ref_array( 'pre_post_redirect', array( $post_ID, $location ) );
+
 	wp_redirect( $location );
 }
 
Index: wp-admin/edit-page-form.php
===================================================================
--- wp-admin/edit-page-form.php	(revision 11605)
+++ wp-admin/edit-page-form.php	(working copy)
@@ -404,7 +404,7 @@
 <div id="notice" class="error"><p><?php echo $notice ?></p></div>
 <?php endif; ?>
 <?php if (isset($_GET['message'])) : ?>
-<div id="message" class="updated fade"><p><?php echo $messages[$_GET['message']]; ?></p></div>
+<div id="message" class="updated fade"><?php echo apply_filters( 'page_admin_message', '<p>' . $messages[$_GET['message']] . '</p>' ); ?></div>
 <?php endif; ?>
 
 <?php
Index: wp-admin/edit-form-advanced.php
===================================================================
--- wp-admin/edit-form-advanced.php	(revision 11605)
+++ wp-admin/edit-form-advanced.php	(working copy)
@@ -554,7 +554,7 @@
 <div id="notice" class="error"><p><?php echo $notice ?></p></div>
 <?php endif; ?>
 <?php if (isset($_GET['message'])) : ?>
-<div id="message" class="updated fade"><p><?php echo $messages[$_GET['message']]; ?></p></div>
+<div id="message" class="updated fade"><?php echo apply_filters( 'post_admin_message', '<p>' . $messages[$_GET['message']] . '</p>' ); ?></div>
 <?php endif; ?>
 <form name="post" action="post.php" method="post" id="post">
 <?php
Index: wp-admin/page.php
===================================================================
--- wp-admin/page.php	(revision 11605)
+++ wp-admin/page.php	(working copy)
@@ -57,6 +57,8 @@
 	} else {
 		$location = add_query_arg( 'message', 1, get_edit_post_link( $page_ID, 'url' ) );
 	}
+	
+	do_action_ref_array( 'pre_page_redirect', array( $page_ID, $location ) );
 
 	wp_redirect($location);
 }