The Fedora community generates updated installation media so that users can install updated versions of software directly (instead of installing release media from getfedora.org and then updating).
This is done by the ReSpins SIG.
The updated live media is here: http://tinyurl.com/Live-respins/
They regularly need helpers to test new versions. Please join the #fedora-respins IRC channel to help them out. Once there, please write
/topic to get information about the current testing requirements, or of course, just speak to the folks there