@that girl again - I'm not sure how the Foundation home page http://wordpressfoundation.org/ could be any clearer
The point of the foundation is to ensure free access, in perpetuity, to the software projects we support.
...
As part of this mission, the Foundation will be responsible for protecting the WordPress, WordCamp, and related trademarks. A 501(c)3 non-profit organization, the WordPress Foundation will also pursue a charter to educate the public about WordPress and related open source software.

Emphasis mine.