FoKS (version 0.3) by Gilbert Roulot
( foks-0.3.0.i386.tar.gz, foks-0.3.0.src.tar.gz - scroll down to the download link, which, unfortunately, seems to be dead)

Another viewer that I unfortunately haven't tested yet; and this while the author, as well as putting up the source, has included a ready-to-run binary for download. This one works with the KDE desktop and needs a Garbage Collector (libgc.so).

Archive support: no
FKiSS: 3
CKiSS: yes
Enhanced palette: yes
Bugs and idiosyncrasies: none known.
Screenshot: none yet.