I am confused by the package name -- seems like it should end in server or shared, not serialization.
Also, if this is about being able to use common code on client and server for JSON serialization, would we be better off just providing a client-side implementation of org.json? http://gwt-code-reviews.appspot.com/696801/show -- http://groups.google.com/group/Google-Web-Toolkit-Contributors
