The news was already interesting enough less than a year ago, when we published the article Visual Editor or WindowBuilder Pro.

Since then however many other things have happened. In short:

december 15th, 2010
Google Open Sourced the source code of WindowBuilder Pro and donates it to the Eclipse Foundation (see announcement)

june 1st, 2011
Visual Editor Project was archived (here the announcement and the archived project page)

june 21st, 2011
Project WindowBuilder Pro enter the Indigo train, the official release of Eclipse 3.7 (code name Indigo).
Here are some more detail on the event:
Window Builder, Top Indigo Feature #2

Now WindowBuilder Pro can be installed without external Update sites, but direcly from the Indigo main Update site

or from the Eclipse Marketplace


Other details on how to use this mature and extremely powerful tool, here are some tutorials

Happy visual development!