Node.js integration?

Patches are welcome...

Here is a simple solution.

/**
 * Implements hook_entity_insert().
 * Create a realtime growl notification of every message on insert.
 */
function portal_messages_entity_insert($entity, $type) {
  if($type === 'message') {
    nodejs_send_user_message($entity->uid, '', $entity->getText());
  }
}