Good news for patient Fedora users, they will get to test the beta of Fedora 18 on November 27, 2012 (not 2013).
Fedora 18 Beta got a GO and will be released on Nov 27th!
Fedora 18 has been delayed due to numerous reasons. The final version is expected to be released in 2013. Initially Fedora 18 was scheduled to be released in November this year. This delay is due to several blocking bugs in the newly redesigned Anaconda installer and fedup, the Fedora upgrade manager.