Google Web Toolkit

It's all over the Internet. Google published the toolkit that is useful for making AJAX enabled web applications. It generates HTML and JavaScript on the fly and you can test the web application inside a JVM during development (relying on Tomcat).

I'm convinced that this is the pre-cursor to a radical re-thought on MVC frameworks and architectures. I don't think it has ever been this simple. HTML and JS personally for me have been the most difficult things to get right. MyFaces and Struts look ancient technologies compared to what Google has done. Amazing job!

http://code.google.com/webtoolkit/overview.html