Thanks for posting. Do you have any ideas on why much of the Joomla culture (or Drupal or Wordpress for that matter) rejects or hasn't considered Walker's view? As for the trademark issue, I'm not sure if Joomla is unique in trying to stop any use of its brand or not. I would guess it is, and that move is flatly out of step with the OS community--a pure power play to attack those who
are taking Walker's view on commercial developers using an open source platform.
I'm not sure what can be leveraged for the benefit of the pro-commercial segment of FOSS ecosystems at a higher level, but I am sure it would help if commercial developers did even more along the lines of:
-blogging/reporting/journalism on the issue
-general organizing to include web developers who are not commercial extension developers but their customers and any other happy paying customers
-general PR strategy focusing on broad benefits of an alternatively commercial sector/models in Open Source. One overlooked point may be the opportunities for small business development
-participate in altruistic and civic engagement endeavors, specifically targetting business 2.0, journalism 2.0, and government 2.0 endeavors, particularly those that empower small organizations, businesses, and municipalities
-stress the need for clear, informative, well-built, attractive sites that in themselves speak to the quality and care benefits of "paid professionals" especially re. the JCDA site.
-push developers to be as open and informative as possible about features, bugs, roadmaps, documentation, support, pricing, and having easy to use and attractive demo and trialware options
-establish/support independent peer review sources
-establish rules and expectations for software distribution (to encode or not encode?) that follow from a consensus on licensing legal issues, interpretation of GPL, etc.