Yes, the BEEZ that is! One of the default templates that comes with Joomla! 1.5 installation. The showcase of this site can be found at http://www.joomla-beez.com/
In the Joomla forum BEEZ has its own designated place for discussion. It is a Child Board of “Design and Accessibility”.
The first post I’d read when I visited the board was the designer’s explanation about BEEZ. The post’s title was “What is Beez?” You can read the complete post here: http://forum.joomla.org/index.php/topic,145893.0.html
I should write something what I found reading all those threads under The BEEZ board but for now I’ll just keep it to myself.