What do you mean? There are updates for FC4, even though it may be
surprising. See:
http://download.fedora.redhat.com/pub/fedora/linux/core/updates/4/i386/
There is the plan to have just yum there in future and to drop up2date
together with the applet, maybe with FC5 shipment. I think a visual
"thingy" would then be helpful though.
Alexander
Let me rephrase. The applet showed the system up2date when their were
updates available. The applet should have been red with an exclamation.