Hi
"We have already used Fedora Core 6 Zod for several days now and have been extremely pleased by this release. The changes are extensive from default AIGLX + Compiz support to a great deal of performance improvements. Another nice feature is the immediate availability of Extras packages built for Fedora Core 6 (ATRPMS, Livna, and FreshRPMs also have third-party FC6 repositories established). After more than a dozen installations, we have not yet run into any show-stopping problems. "
http://www.phoronix.com/scan.php?page=article&item=573&num=1
Rahul