From Distrowatch:
Fabio Erculiani has announced the availability of three experimental editions of Sabayon Linux 7, containing the LXDE desktop environment, Enlightenment 17 and the Awesome window manager: \"Directly from our 'Breaking Stuff' department, three new Sabayon 7 releases have seen the light. These releases all go under the 'Experimental' umbrella: 'LXDE' is a minimal, CD-sized flavour geared towards low-end computers, shipping the LXDE desktop environment; 'E17' is a minimal, CD-sized flavour made for people wanting to showcase the magic of Enlightenment 17; 'Awesome' window manager flavour. Features: latest and greatest package updates from repositories; Linux kernel 3.1....\"
(http://distrowatch.com/6979)
This is the edition with the 'Awesome'window manager. (http://awesome.naquadah.org/)