=== modified file 'nodewords.module'
--- nodewords.module	2011-01-20 10:35:34 +0000
+++ nodewords.module	2011-01-20 11:17:27 +0000
@@ -40,6 +40,7 @@
 define('NODEWORDS_HTTP_EQUIV', 1);
 define('NODEWORDS_LINK_REL', 2);
 define('NODEWORDS_LINK_REV', 3);
+define('NODEWORDS_META_PROPERTY', 4);
 
 /**
  * Implements hook_node_type().
@@ -884,7 +885,12 @@
       continue;
     }
 
-    $parts = explode(':', $name);
+    // Check if it's a property meta tag
+    $bool = (
+      isset($tags_info[$name]['templates']['head'][$name]) &&
+      $tags_info[$name]['templates']['head'][$name] == NODEWORDS_META_PROPERTY
+    );
+    $parts = ($bool ? array($name, $name) : explode(':', $name));
     $template = '';
 
     if (!isset($parts[1])) {
@@ -922,6 +928,10 @@
           $template = '<link rev="%name" href="%content"%attributes />';
           break;
 
+        case NODEWORDS_META_PROPERTY:
+          $template = '<meta property="%name" content="%content"%attributes />';
+          break;
+          
         default:
           if (!is_string($template)) {
             $template = '';