I sometimes wonder if good visual and interaction design can succeed in the open source model. In software development, tasks can be parcelled out in a modular way to many developers. But this model doesn't work well for visual and interaction design. If you want all the parts of an Operating System or piece of software to feel consistent and cohesive, you need a more focused approach. And that means handing design tasks to a designated design team and entrusting them to make the UX decisions. But with open source projects, we all want a say in the UX (me included); thus the endless (and often bitter) discussions about how a piece of software should behave.
The model of open source code has influenced and inspired countless companies. But who can point to examples of visual and interaction design from open source software that has had a similar effect? I see the influence going much more the other way i.e. open source software often follows ideas or conventions from commercial companies. I'd love to see this change. But how?