Whats the difference/relationship between Free and RBD / RDz with EGL?
The commercial versions of EGL tooling from IBM (Rational Business Developer, Rational Developer for System z with EGL, and Rational Developer for i for SOA Construction) have additional capabilities not included in Free, such as support for WebSphere Application Server and other enterprise-level capabilities and features. Free is a subset of these tools and is focused squarely on helping you build end-to-end (client and server) RIAs.