Have to say though, with Windows8 coming about and with hyper-v built-in I'd just run a vm of some nix, then having at it with Node builds with already tons of usage under its belt. But I do understand that people with IIS want to run Node.JS natively.

I applaud the native windows support, but I wonder how many corporate companies (who are running IIS instead of nix) will want to run something like Node.JS.

Node.JS on windows seems more like an Azure benefit, which most savy companies and start-ups use.