Are there any open source C#-based non-blocking, event-based web server like Tornado?

Question

I want to build a comet-based application and would like it to be able to sustain up to 1000 concurrent connections. As I understand, Tornado has the advantage of not spawning one thread per request thus allowing it to handle thousands of long poll requests easily.

Answer 1

I think Manos de Mono is what you are looking for. It is still pretty early, but looks promising.