[Yum] need a good comparison between yum and rh, current, nrh, etc

[mark_yum at tcu-inc.com]

> Something to keep in mind, newer versions of up2date support updating
> from yum repositories, so there is no longer a need to use rhn to use
> the graphical interfaces in up2date or rhn_applet.

Cool!
I might try it out. 

Thanks!
Mark