Looks like Ruby on Rails is adding another trick up its sleeve: native Ajax integration. Bing Bing Bing!
Ajaxing the Rails
This is done by off-loading the creation of DOM elements to the server side, which returns complete constructs that are then injected live through innerHTML. While this method is slightly more verbose than just peddling data across the wire, it’s immensely easier to develop.
Read the rest of the article, it’s really cool:
Ajaxing the Rails (Loud Thinking)