Fedora WILL have an up2date system. From the release notes of Fedora Core 1:
"The Red Hat Update Agent (up2date) now supports installing packages from apt and yum repositories as well as local directories. This includes dependency solving and obsoletes handling. Additional repositories can be configured in the /etc/sysconfig/rhn/sources file."
In fact, there's a whole page walking you through the process of downloading updates (including using up2date):
http://fedora.redhat.com/download/updates.html
I haven't tried Fedora, but we should at least try to give factual answers and avoid spreading FUD.