I've used Sidux since its inception and it's an absolutely fantastic Debian operating system. You wouldn't believe how fast it is! The main concern, obviously with Debian is that it's a "rolling" release. As new packages enter the Unstable repository, then flow to Testing and eventually trickle down to Stable poor coordination or failure to apply patches, etc. sometimes causes breakage in all or part of the operating system. Sidux minimizes this by using an intricate system of upgrade warnings and custom scripts while also employing many of their own custom-built tools to ensure fairly smooth sailing. Mint does have its work cut out for it if it intends to use Gnome as the primary desktop. Gnome in Debian is notorious for breaking frequently and causing other problems. Even Sidux won't officially support a Gnome desktop and the version of Gnome in Debian Stabe (i.e., Etch) is only 2.14. Many people fail to realize the amount of work Ubuntu devs put into just Gnome, in order to provide the latest release every six months. Mint may have better luck combining the talents of the Linux Mint KDE CE community with the Debian Mint CE community to produce a solid KDE centric desktop. Perhaps some tools and scripts might be borrowed from Sidux, Kanotix or even DreamLinux and modified to create a rock solid Linux Mint Debian Edition. Alternately, perhaps Ubuntu's Gnome packages could be ported to the Debian Edition of Mint and pinned to prevent problems when upgrading the rest of the system. Just some thoughts.
On a related topic, how's development coming Zonas? You've been quiet for awhile.
Need any help? Testers?