If you have individual and group installation and removal (plus handling multiple repository which I believe yum already does ... I am not currently a yum user), this could give the needed functionality as well as replace up2date.
up2date isn't going away - it's interfaces to rhn and the protocols involved are it's best feature - in addition, adrian has generated a rather impressive infrastructure in up2date.
But I would like to see a nice gui on yum and some neat utils derived from there.
-sv