Seems Mozilla Foundation is now creating a corporate branch, based around the success of FireFox. But it seams it will be a free product still; as I understand it seems they will be looking for revenue under sponsor/kick back system from Corporations on top of the donation system already there.
Story:
http://www.desktoplinux.com/news/NS2096324764.html
This really means nothing as far as i can tell. It could also be that they broke the non-profit criteria (profits under $5000) and needed to go corporate.