I just post a article here about how to build GWT application using JDeveloper. This is just a start of set of topics I would like to post in the next weeks or months, so if you interested just take a look and let me know what you think. Also I plan to past some articles about building JSR-286 portlets using GWT as for the UI. So have a look and as usual I am always open for comments, questions and tips.
Also if you have any suggestions about GWT articles or issues you want to see, do not hesitate to post them to me!