WordPress released an opinion from the Software Freedom Law Center today confirming that WordPress themes must be GPL, although the images and CSS in a theme don’t have to be.
This is substantially similar to how Plone and Drupal have always thought that GPL applies to themes and add-on products, and it’s nice to see a project as large as WordPress putting its heft behind this common-sense interpretation of the GPL.
I’m also really excited by this development, though For the 4 years I’ve been involved in WordPress the communities heft has always been behind it — this reinforcement with legal opinion in an official channel is great reinforcement.
I found it interesting to read at http://hackervisions.org/?p=419, Joomla recently made their Extensions Directory 100% GPL as well http://community.joomla.org/blogs/community/941-jed-to-be-100-gpl-at-midnight.html
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