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 21st, 2011
Project WindowBuilder Pro enter the Indigo train, the official release of Eclipse 3.7 (code name Indigo) 못나니 다운로드.
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 call of duty!