Compiling JavaScript to make AJAX easier

I just came across the new project Narrative JavaScript that attempts to make using AJAX async calls in JavaScript easier by making a small async syntax extension to the JavaScript syntax which you then pass through a compiler to produce the real JavaScript code. This sort of reminds me of the approach of the Google Web Toolkit where you write your UI code in pure Java and then "compile" it the JSPs/JavaScript. Compiling code to JavaScript could become the new fad in AJAX programming.