Check out this article from BSD Mag — Ken Moore gives us a overview on the Lumina Desktop Environment. You can try out Lumina shipped right on the PC-BSD operating system. Follow the link below for the full article.

Lumina-0.8.3

The Lumina Desktop Environment is a new, BSD-licensed, graphical system environment which is designed primarily for BSD and UNIX-based operating systems. This focus on BSD systems results in a number of distinct differences in from the current collection of Linux-focused desktop environments, only one of which is independence from all the Linux-based system management frameworks.

This article will explain a bit of the history behind the Lumina desktop, the foundations of its design philosophy, the internal operating system sup- port framework, the current status of the project, and the goals/timeline for the project to achieve an official (non- beta) release….

BSD Magazine – http://bsdmag.org/lumina_desktop/