LGTM, one small nit.
http://gwt-code-reviews.appspot.com/1356804/diff/1/6 File samples/showcase/src/com/google/gwt/sample/showcase/client/MainMenuTreeViewModel.java (left): http://gwt-code-reviews.appspot.com/1356804/diff/1/6#oldcode139 samples/showcase/src/com/google/gwt/sample/showcase/client/MainMenuTreeViewModel.java:139: private final String name; This line (and the Map declarations below) look too long. http://gwt-code-reviews.appspot.com/1356804/show -- http://groups.google.com/group/Google-Web-Toolkit-Contributors
