After upgrade FC4->FC5, I noticed that the up2date and rhn stuff were still installed, showing a useless entry in the config menu, wasting space and being just unhelpful. Even though upgrading isn't supported, it'd be nice if the new pirut and pup stuff obsoletet rhn so that it disappeared in the upgrade for the brave souls that do upgrade.
The intent is that if someone is using up2date, they can continue to do so for now and not force them off of it. Given that this is the first release with pirut, we wanted to leave that option. This may change in the future.
Correct me if I'm wrong, but hasn't up2date been broken for at least one release cycle?