I think a SteamOS version should be even better than a "normal" Linux/Ubuntu version. I guess it would run on SteamOS as well, but I would really prefer a dedicated version.
First we have to find out more about SteamOS which will be released in November. But perhaps Larian could contact Valve/Steam right now and claim their interest in further corporate informations. I think Valve/Steam would offer serious support for early adopters so it might be worth the effort.
Just think about the publicity and marketing effects to also develop for SteamOS or change Linux version to that. In that case DOS would even be a release title for the new steam machines in 2014 with SteamOS preinstalled...
