This app can be checked out from SVN (from p4j5) or directly used from http://www.adam-bien.com/tdb/. There are already about one hundred registered users. However the connection to my Glassfish v2 instance is very slow from outside - so be patient.
Beyond that, in the repository are already about sixty Netbeans 6.0 sample projects, which are directly deployable (and tested) to Glassfish v2.
I will discss some of the patterns during the workshop in frankfurt next week. The theory behind the sample code is explained in detail in my (German) book "Java EE 5 Architectures" ...but who cares about German books? :-).