I believe it would be possible to update the isos say each month, and made so it by a script in an installed system could be used as update repo too. (it mounts the CD and registers it as a update repo for the normal updater to use)
It has packages from main update repo replacing updated versions. It does NOT use chauldron. - Almost like we have a new release each month, but it really is just updates, no revolutionary changes. Strong points: § Always possible to download a current live/install § CD can be made and handed out from friends or local organisations both for new trials and to the ones who just need update. Still not a good solution for thoose who only have low bandwidth and no easy way to recieve a CD though...
