Well, so are we. :P
Who knows, someday it may go commercial but I just do not have time for that. When people pay for something they deserve better support than I can currently offer.
Much of the current development is subsidized by
SocialKnowledge so I am technically not doing it for free. SK has been generous enough to let me release the new work freely since I brought a good portion of the code myself with me when I joined them. We use Wordpress quite a bit in our ventures and that software is free, so this in turn supports that community.
In the end we get what we put into it.