Thanks for the candid reply.

I am optimistic you could pick .NET for Unix in a year or two

This really resonates with me. I feel like there's been a language boom in the past few years, but few implementations yet have the maturity and stability that I'd expect in a corporate environment. Given enough time and continued interest in alternative languages, I'd bet that Java's grip on this market will likely continue to erode (though an outright slide into obscurity seems highly unlikely). If it were ten years from now, perhaps I'd even be considering Go for this space.