MiG Layout 3.5 is a Layout Manager for Swing and SWT that is very easy to use, yet extremely powerful when needed. It has a syntax that resembles CSS and replaces the functionality of all other layout managers, including FormLayout and TableLayout.
Version 3.5 contains several improvements. You can view them all in the change log.
At the site there are also demo applications, cheat sheets and a white paper.
If you are visiting JavaOne, note that I will have a Technical Session (TS-4928) about how to create GUIs using MiG Layout. If you are attending JavaOne and you are a client side developer, or want to be one, please come and see it. I promise you that you will create more good looking GUIs faster if you do.