Anyone using Node.js?

I was wondering if anyone has experience with: 

Node.js?

Using Node.js with XML?

By “with XML”, I mean literally anything—parsers, generators, transformers…

…But if you’ve gotten Node.js to work with existing XML tools  (99.999% Java-based), you get bonus points ☺ 

Using Node.js to develop websites?

Using Node.js to serve websites?


—Zearin (Tony)