Automatic browser refresh on file change or update is what you can call it. NodeJuice is a set of tools which allows you to develop with a push connection to your web browser. JavaScript V8 Seeker Server and Web Server Gateway Interface. nodeJuice Seeker Server works with all other servers including Apache, Passenger, Nginx, Cherokee, and more. A web server isn't required, NodeJuice comes with one in case you forgot yours. It runs on NodeJS; a low level non-blocking network ready process with many capabilities. This is a tool that every web developer needs and has wanted for a very long time. IRC @ #node.js
http://www.nodejuice.com/install Is outdated. (Nodeversion is incompatible and very old, demo directory has been renamed to demos.