Setting up permissions for non-registered users
In your menu item definitions, you can specify TRUE as the access callback to make the item always accessible.

&lt;?php
  function mymodule_menu() {
    $items['abc/def'] = array(
      'page callback' =&gt; 'mymodule_abc_view',
      'access callback' =&gt; TRUE,
    );
    return $items;
  }

?&gt;


See http://api.drupal.org/api/function/_menu_check_access/7

Hope this helps,
Mark