This stuff is currently available as 2.1.1-SNAPSHOT in the codehaus repo : https://nexus.codehaus.org/content/groups/snapshots-group/
Running your application in debug mode with AppEngine Launcher
<build>
<plugins>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>gwt-maven-plugin</artifactId>
<version>2.1.1-SNAPSHOT</version>
<configuration>
<server>com.google.appengine.tools.development.gwt.AppEngineLauncher</server>
</configuration>
</plugin>
</plugins>
</build>
See appengine-launcher
Css Interface Generator
See Css Interface Generator
More Gwt compiler options
-compileReport, -optimize, -XsoycDetailed, -strict (see Documentation )
Compiler Report
To have link to the Gwt compiler report in your Maven generated web site
See Compiler Report
Full changelog
Do not hesitate to test and send feedback.
Thanks !