Ubiquity tries to implement a generic yet stylish look found or sought by many webpage owners. It tries to be completely valid XHTML Strict and CSS 2.0. Using the ’anyorder columns’ layout style it will make your pages search engine friendly as the main content column comes first in the html. You can download the Photoshop source files and customize the theme to fit your needs.
UPDATE 06/03/2011: The 5.x version will not receive any support anymore.
The 6.x-1.x branch will only get bugfixes.
Started working on the 6.x-2.x branch, which is being rewritten from the ground-up so stay tuned.