Web App Frameworks - Jakarta Tapestry 4.0 beta 11 released

"The latest weekly beta release for Jakarta Tapestry 4.0 adds more documentation and debuts a completely renovated Virtual Library demonstration J2EE application, which makes use of all the latest and greatest 4.0 features, including annotations, friendly URLs, and multiple folders. In addition, a class loader bug related to client-side persistent properties was fixed."
http://jakarta.apache.org/tapestry/index.html