This is a wonderful hack, I've said it before, and I'll say it again!
I just wanted to mention that in my forum, in order to display the forum home page, more than 260 sql queries are being performed! The situation is not much better with the forumdisplay.php script as well.
The good news are that after hours of intense optimization, the forum home page is now done with only 21 queries, and the forumdisplay.php with 23.
I know ethank is too busy to work on this hack anymore, but maybe these scary numbers will encourage him to come back to us.