I thought it was a modded version of suckerfish, but judging by responses I am getting at this post
http://www.rockettheme.com/index.php?option=com_smf&Itemid=149&topic=3511.0
I don't think it is a suckerfish menu.
Is this menu that rockettheme.com uses available as a module somewhere? ???
I really like the simplicity of it.