Why not let the platform be agnostic, or allow native deployment outside of windows land?

Case in point, running mysql needs a separate web role and costs >$80 where SQL server is $10 (old prices?).

If your building on top of .Net then take advantage of all that native goodness. Otherwise you face an uphill battle in terms of getting it to just work and pricing.

Don't let this ruby carrot fool you...

Notice how no one gave a rats a$$ about this post. M$FT should take note that in the long run they're loosing a high quality pool of developers.