I see they don't have X on any platform any more, which shouldn't surprise me.
I think they were $149, so make it $1490, and if X were still viable on any platform, then I would expect them to do it (because if 10 will offer to buy, there have got to be others who would, too.)
But that's because I thought they had it on other platforms, which would make it just a few days effort on OS/2. Plus, they were eCS supporters, so they didn't really need a strong business case.