Earlier this week Eclipse Indigo shipped to much fanfare. One of the features that we are personally happy to see ship is the embedded Window Builder support. Window Builder is the framework on which SWT, Swing, and (near and dear to our hearts) GWT Designer is built on top of.
To coincide with this announcement we now have a 2.3.2 version of GPE that is Indigo-compatible. For more information on installing this update, checkout the GPE quick start guide.
Chris Ramsdale, Product Manager, GWT and GPE firstname.lastname@example.org