Tom Duff gets it. And so should you. Every Domino developer should go read his article on e-pro's website. As a product manager for IBM Workplace tools, I live this stuff.
We are trying to make developers more productive when using Domino tools, as well as allow them to expand their skills into J2EE - but only on their own schedule. IBM Workplace Designer will provide a smooth transition to J2EE and let Domino developers (and others with similar skills) build components for IBM Workplace - browser first, and Workplace Client later.
You'll be hearing more about Workplace Designer soon. In the meantime, check out the application development area on developerWorks.
Sr. Product Manager, IBM Workplace Application Development