And the process that D20 companies will now have to go through to get their product approved for quality, decency and the like.
I've just become aware of the issue myself, but it seems, from what I've read, that the main catalyst for the change is a product coming out in Oct. called "The Book of Erotic Fantasy" from Varda Project, Inc.
The sad thing to me is that some D20 companies have already dropped that logo. I assume there will be an OpenGL logo soon. I'm also sad that soon WoTC won't have the cash cow of everyone needing their books as they do now. But then, I can understand distancing oneself from something that might give the gaming industry one more black eye, imagewise.