From the Back on Track dept.:
As you well know, we have been working hard to get updates for 8 and 9 flowing again, complete with new package signing keys. Discussion has been somewhat quiet on this front as we've all had our heads down and have been working hard toward a solution, one that involves little to no manual effort on behalf of our users.

Today we've reached a major milestone in this progress. We have done a successful compose of all the existing and as of yesterday pending updates for Fedora 8 and Fedora 9, all signed with our new keys. These updates will soon hit mirrors in a new set of directory locations. What we don't have quite yet is the updated fedora-release package in the old updates location that will get you the new keys and the new repo locations. The last mile testing of this update requires that new updates be live on the mirrors.

fedora-announce-list