Index: wp-admin/async-upload.php
===================================================================
--- wp-admin/async-upload.php	(revision 10685)
+++ wp-admin/async-upload.php	(working copy)
@@ -30,6 +30,7 @@
 		add_filter('attachment_fields_to_edit', 'media_single_attachment_fields_to_edit', 10, 2);
 		echo get_media_item($id, array( 'send' => false, 'delete' => false ));
 	} else {
+		add_filter('attachment_fields_to_edit', 'media_post_single_attachment_fields_to_edit', 10, 2);
 		echo get_media_item($id);
 	}
 	exit;
Index: wp-admin/includes/media.php
===================================================================
--- wp-admin/includes/media.php	(revision 10685)
+++ wp-admin/includes/media.php	(working copy)
@@ -838,7 +838,10 @@
 function image_attachment_fields_to_edit($form_fields, $post) {
 	if ( substr($post->post_mime_type, 0, 5) == 'image' ) {
 		$form_fields['post_title']['required'] = true;
+		$file = wp_get_attachment_url($post->ID);
 
+		$form_fields['image_url']['value'] = $file;
+
 		$form_fields['post_excerpt']['label'] = __('Caption');
 		$form_fields['post_excerpt']['helps'][] = __('Also used as alternate text for the image');
 
@@ -871,6 +874,12 @@
 	return $form_fields;
 }
 
+function media_post_single_attachment_fields_to_edit( $form_fields, $post ) {
+	unset($form_fields['image_url']);
+	return $form_fields;
+}
+
+
 /**
  * {@internal Missing Short Description}}
  *
@@ -943,9 +952,18 @@
 	if ( is_array($post) )
 		$post = (object) $post;
 
+	$image_url = wp_get_attachment_url($post->ID);
+		
+		
 	$edit_post = sanitize_post($post, 'edit');
 
 	$form_fields = array(
+		'image_url'          => array(
+			'label'      => __('File URL'),
+			'input'      => 'html',
+			'html'       => "<input type='text' class='urlfield' readonly='readonly' name='attachments[$post->ID][url]' value='" . attribute_escape($image_url) . "' /><br />",
+			'value'      => $edit_post->post_url,
+		),
 		'post_title'   => array(
 			'label'      => __('Title'),
 			'value'      => $edit_post->post_title,
@@ -1371,6 +1389,7 @@
 <?php
 if ( $id ) {
 	if ( !is_wp_error($id) ) {
+		add_filter('attachment_fields_to_edit', 'media_post_single_attachment_fields_to_edit', 10, 2);
 		echo get_media_items( $id, $errors );
 	} else {
 		echo '<div id="media-upload-error">'.wp_specialchars($id->get_error_message()).'</div>';
@@ -1537,6 +1556,7 @@
 </tr></thead>
 </table>
 <div id="media-items">
+<?php add_filter('attachment_fields_to_edit', 'media_post_single_attachment_fields_to_edit', 10, 2); ?>
 <?php echo get_media_items($post_id, $errors); ?>
 </div>
 
@@ -1770,6 +1790,7 @@
 </script>
 
 <div id="media-items">
+<?php add_filter('attachment_fields_to_edit', 'media_post_single_attachment_fields_to_edit', 10, 2); ?>
 <?php echo get_media_items(null, $errors); ?>
 </div>
 <p class="ml-submit">