Cool, but why? The traditional arguments in doing something like this would be to access the libraries available on something like .NET. However, the point of building Node on V8 is to <i></i>avoid<i></i> existing, non-async libraries.
Blog post from the creator:<p><a href="http://newcome.wordpress.com/2010/05/08/node-net-node-js-implemented-in-javascript-on-the-net-runtime/" rel="nofollow">http://newcome.wordpress.com/2010/05/08/node-net-node-js-imp...</a>
I realize that running Node on top of the .net runtime will probably be significantly slower than running it on top of the highly optimized V8 engine, but some perf numbers would be interesting nevertheless.