Glassical is a GPL Wordpress theme of the same name that was released by Smashing Magazine and created by Abdullah Ibrahim originally.
I have converted Glassical to a Drupal 6 theme. Don't worry, I am going to be releasing this theme for Drupal 7 shortly. Stay tuned!
I have added 2 useful extra content/block regions and plan to add more soon.
Added Content Top & Content Bottom Content Regions
2 Column Layout
Pure CSS Primary Links Menu Dropdowns
Neato CSS 3 Text Shadow effects