I proposed this feature
https://fedoraproject.org/wiki/Features/MediaRepo
and I implemented the solution for yumex (about 25%) and contacted the upstream (he asked me to do that in yumex nextgen and that's not a problem)
the next step is to do that in PK (another 25%) I hope I can do that today
50% is to clean up the CDROM mounting routines because they use old HAL code
I was advised to use GIO and GVolumeMonitor because DeviceKit-disks API won't be stable in F12 nor F13
regardless of any of those factors, what should I do to make this feature be part of F12 features ?