Index: wp-includes/post.php
===================================================================
--- wp-includes/post.php	(revision 22644)
+++ wp-includes/post.php	(working copy)
@@ -30,6 +30,7 @@
 		'rewrite' => false,
 		'query_var' => false,
 		'delete_with_user' => true,
+		'show_mobile' => true,
 		'supports' => array( 'title', 'editor', 'author', 'thumbnail', 'excerpt', 'trackbacks', 'custom-fields', 'comments', 'revisions', 'post-formats' ),
 	) );
 
@@ -47,6 +48,7 @@
 		'rewrite' => false,
 		'query_var' => false,
 		'delete_with_user' => true,
+		'show_mobile' => true,
 		'supports' => array( 'title', 'editor', 'author', 'thumbnail', 'page-attributes', 'custom-fields', 'comments', 'revisions' ),
 	) );
 
@@ -1218,7 +1220,7 @@
 		'supports' => array(), 'register_meta_box_cb' => null,
 		'taxonomies' => array(), 'show_ui' => null, 'menu_position' => null, 'menu_icon' => null,
 		'can_export' => true,
-		'show_in_nav_menus' => null, 'show_in_menu' => null, 'show_in_admin_bar' => null,
+		'show_in_nav_menus' => null, 'show_in_menu' => null, 'show_in_admin_bar' => null, 'show_mobile' => null,
 		'delete_with_user' => null,
 	);
 	$args = wp_parse_args($args, $defaults);
Index: wp-includes/class-wp-xmlrpc-server.php
===================================================================
--- wp-includes/class-wp-xmlrpc-server.php	(revision 22644)
+++ wp-includes/class-wp-xmlrpc-server.php	(working copy)
@@ -718,6 +718,7 @@
 			'_builtin' => (bool) $post_type->_builtin,
 			'has_archive' => (bool) $post_type->has_archive,
 			'supports' => get_all_post_type_supports( $post_type->name ),
+			'show_mobile' => (bool) $post_type->show_mobile,
 		);
 
 		if ( in_array( 'labels', $fields ) ) {