Generat title AFTER the node is created

Interesting.. I didn't know about the workflow-ng module. Thank you very much! I'll try it and then I'll post here the solution if it works.

One question regarding ANT and workflow: how can I see the ANT action in workflow?

Fago, I didn't manage to solve the problem with the workflow-ng module so I've modified your module like this:

function auto_nodetitle_nodeapi(&$node, $op, $form = NULL, $a4 = NULL) {
  if ($op == 'insert' || $op == 'validate') { //added the insert operation
    if ((auto_nodetitle_get_setting($node->type) == AUTO_NODETITLE_ENABLED) || ((auto_nodetitle_get_setting($node->type) == AUTO_NODETITLE_OPTIONAL) && empty($node->title))) {
      /*
       * Sets the node title.
       * We need to do this on validation because of two points: 
       *     It's early engouh to have node previews working and 
       *     it's late enough as CCK has already gone through the 'process form values' step 
       * 
       * As changes to $node are not persistent during validation, we use form_set_value()!
       */
      auto_nodetitle_set_title($node);

      //replace {nodeid} with the actual id of the node
      $tmptile = $node->title;
      $tmptile = str_replace('{nodeid}', $node->nid, $tmptile);
      $node->title = $tmptile;
      
      if($op == 'insert')
        $mynode = node_save($node);
      else
        form_set_value($form['title'], $node->title);
    }
  }
}

So, if there is {nodeid} in the title, this is replaced by the actual id of the node. Do you think is safe for me to use your module modified like this?