A guy who is quite popular in RU game community is documenting his journeys in Morrowind, and he uses OpenMW to play the game. I call it a win. (:
I find his story really amusing (only russian, sorry).
He also published a tutorial (EN/RU) for Steam users, explaining how to play the game on Linux (using OpenMW). It's pretty straightforward and obvious, but the more attention OpenMW gets, the better.