GWT - Have you tried it ??

What's GWT ?
Google Web Toolkit is an open source Java development framework that can be used to build web applications using AJAX easily and you do not have to worry about issues like cross-browser compatibility.

GWT Major Features:

• Real-time debugging
• Cross-browser compatibility
• Reusable UI Components
• Simplified DOM API
  
• Completely Open Source
  

One of GWT's major strength is GWT's Java-to-JavaScript compiler which translates the Java source code into equivalent JavaScript code which can be run in web mode on any web server.
Also, during development you can run and debug your application in hosted mode by running it as Java Bytecode within JVM using GWT's Hosted Web Browser.
To get an overview of the its architecture, please see this

On a downside, there are few issues still unresolved:

• GWT 1.4 does not support JDK 1.5 version but GWT 1.5 Release Candidate do support it
• Also, GWT does not support several concepts in Java such as Reflection, Finalization, Assertions, Multithreading & Synchronization, mainly because JavaScript does not provide support for them.

Certain links that i think any novice (to GWT) would find useful

• GWT & NetBeans
• Getting started with GWT
• GWT Blog - Get all latest news here !

So, what are you waiting for !!
If you haven't tried it yet, download it right now here and have fun making easy to use and interactive good looking web applications.