PC was also promised that DX11 would work on release and that the game would prioritise to the PC fanbase and community. I think that is why the Xbox forums had an invasion of angry PC gamers yesterday and the day before.
I'm pretty certain this won't be fixed before Brink is released, and that I will most likely trade it in for that.......
I had some communication with Cry-Adam in my thread "Start Communicating, Stop locking threads about the Patch" 2 days ago, and Cry-Adam responded to the "Grain/Parasite" thread yesterday. Besides confirming some things, no new information has been provided.