nodesite 
A node framework for web applications.
WARNING: Unstable!! In developement.
Client compatibility
- IE 9+
- Firefox 6+
- Chrome 2+
- Opera 11.5+
- Safari 5.1+
How modules are shared by client&server?
Module are client and server side are node (CommonJS) modules.
Client requires modules synchronously with an AJAX request to the server.