I work for CivicSpace and helped create Spread Firefox. The choice to use CivicSpace for SFX was an important one and the right one because the tool fit the need.
In my discussions with Matt, we are working to come up with ways for open-source CMS’ like Drupal and WordPress to coexist and better comingle. It would be excellent, for example, if it were easier to port themes back and forth between the two so that you could run your own personal WordPress blog (as I do) but run your community with CivicSpace or Drupal and have the external (and internal) appearance be consistent for both admins and external visitors.
So Matt and I have been talking about how we can bring our user interfaces closer together so that the experience of moving between either tool is less jarring and more consistent. One real-world thing that’s happening as a result of our collaboration is that Drupal will be moving back to a separate admin UI, to be more consistent with WordPress. This will ultimately, or hopefully, lead to a more seamless upgrade path between WordPress and Drupal — so that you can start out with a personal blog and then scale up to a community when necessary, without having to unlearn or relearn a whole new UI. This improves the whole ecosystem of personal and community publishing.
Though the details are still hazy and is mostly talk at the moment, we are making progress. And since it’s my job to create a very positive user experience in Drupal (and by extension, CivicSpace), working with Matt completely makes sense. With the WP Foundation getting started up, I think that bringing our collective effort together will lead to a lot of really great things for the open source and blogging communities.