[development] phpgacl

Hi all, I am looking into the phpgacl and after searching mailing lists, and drupal.org (via google, the search form seems not to be there) But found very little. eg: http://lists.drupal.org/archives/development/2004-03/msg00566.html Is there any reason why I should not think of phpgacl and Drupal together? (I am wondering why nobody has considered phpgacl for Drupal) Could you recommend me some group management modules in Drupal? Or any hints, anything that relates to permission control & gacl? I am thinking about including phpgacl into Drupal. Thank you very much, roman