[sjs]

We are at SelfServeApps and it's awesome. Not only is ES5 a decent language but our stack is incredibly simple (great when you don't have a sysadmin). We install node on a frontend server and run our app, that's it. It talks to our backend (Riak) over http.

edit: We have a thick client using Cappuccino and we talk to our Node web service using JSON. The only templating on the server is for a few HTML emails, password reset page, and the email verification landing page.