The current version of kpackagekit 0.3.1 in rawhide is not compatible with packagekit 0.4.2 which is now in rawhide. I have pinged upstream kpackagekit about spinning a compatible release but the Dev is currently working on polkit-kde. If Dev cannot/willnot do a release will spin a svn build which is compatible. Until this is corrected though KDE users will have no update tools other than yum.

Steven Parrish