Jesse Keating said the following on 11/29/2009 10:52 PM Pacific Time:
From now on, Rawhide will not have install images. Rawhide is a never
stopping never freezing repository of packages. To get to rawhide
you'll need to start with say F12 and either point to the rawhide repo
during install, or yum update to it post install.
The wiki should be updated.
http://fedoraproject.org/wiki/Releases/Rawhide
Someone has kindly already posted Jesse's announcement on the forums,
but, no doubt, we'll still be getting questions from people asking where
is the rawhide boot.iso. :)