Have your attorney review the terms -- I think you are misunderstanding them. You may not redistribute GWT itself (the actual zip files containing the GWT compiler, among other things), but you own all output from the tools. We even released the source code to the class libraries under the Apache 2.0 open source license.

GWT is available for commercial, non-commercial, and enterprise use with almost no strings attached. Please review the complete terms for details:

http://code.google.com/webtoolkit/terms.html

Bret Taylor
Product Manager, Google Web Toolkit