Step By Step Spring Roo Guide
Between their DM/OSGi server releases, the Spring guys found the time to develop what seems like a promising platform for round-trip development configuration tool called Spring Roo. The tool allows adding various features to a project, including auto generation of configurations, code and tests for various technologies and APIs. In short, Roo allows for development-time configuration similar to Spring's runtime DI...
have a peek at this recently added a step-by-step tutorial:
http://blog.springsource.com/2009/05/27/roo-part-2/

Comments
Hey Zvika,
I am a student in the technion, and I just stumble upon Spring Roo, and I have started a project withuse of Roo,
can I get in touch with you regarding working with Roo?
I have tried to add a method to an entity I created with Roo, but it doesnt make a round-trip, and updates the web GUI,
אודה לך על כל עזרה,
זיו
hi Ziv,
sorry, but I am not able to help - I used Roo quite briefly, and it was about year ago, probably changed a lot since. have you tried checking the forums: http://forum.springsource.org/forumdisplay.php?f=67
best,
zvika
I found short screen shot of how to start a project with SpringRoo + GWT 2.1 : http://www.thescreencast.com/2010/05/how-to-gwt-roo.html
Avi