Supermount is a kernel enhacement that makes removable devices work in the way the user expects: that is, there is not need to mount/umount disks or CDs (except when the system starts). (It is obviously late for the next release. Should I place a new bug report after the release of Redhat 7.2, so that it gets included in the next release?)
Supermount is currently very very unstable. Someone (from Mandrake) is very busy fixing it, but it's not there yet....
Probably will not ship unless this is upstream.