http://wordpress.org/about/roadmap/
Usually no one notices, and the codename isn't even in the tweets or announcement email, just a sentence that clearly links to the jazz musician's Wikipedia page. (It's not like Ubuntu codenames that are widely used.) We also put a fun plug for djangoproject.org to the end of the "future" section, which hopefully will also introduce some new people to their project. I haven't seen anyone tweeting the codename except to complain, so I don't think this is going to confuse anybody think we're rewriting in Python. (However much they may want that.)
That said, apologies for the unintended controversy. In hindsight, we probably should have used "Reinhardt" to have the same effect of honoring one of our favorite musicians without anyone getting confused with a fellow Open Source project.
Now to work on 3.2 Sinatra! (Kidding, Ruby folks.)