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We rarely take anything out of main unless it's no longer used or has been replaced by something else with equivalent or superior functionality. Not sure what your problem with the CUPS web interface is: http://localhost:631/ appears to work perfectly well on current Cooker, I didn't do anything special, just typed in that URL after reading your post.
2005 LE was, as all the release PR and other stuff said, meant to be a release for enthusiasts, not businesses. Hence the CrazyTux (tm...not really). Besides, it really, _really_ isn't all that much work to change it.
Between smb4k, smb:// on GNOME and KDE, and the Samba mount wizard in the MDV Control Center, I'd say we have SMB pretty well covered. Note that anything that supports KDE or GNOME VFS systems will be able to save to / load from a smb://-style location in those desktops; you obviously cherry picked OO.o as an example because it doesn't support either. KOffice would happily save to smb://somewhere.
What's the problem with Acrobat 7? We have a package of it in our commercial packages section and it works fine (so long as you don't use Chinese / Japanese input, which is a known bug with a workaround), and AFAIK installing from the RPM Adobe distributes works OK too.