for those that are not subscribed to the wiki:
http://wiki.debian.org/DebianDesktopHowTo has been updated since a long time.
For me the situation seems to boil down to that installing a Debian-Desktop
isn't too hard anymore at all, CDDing it shouldn't be too much harder either.
There was once the news that infrastructure for a
"current" (desktop/the-swirl) branch is operational somewhere, so this seems
also mostly solved, right?
What is IMHO still missing is an adequate configuration abstraction