Co-opting for advertising. Permission? What's that?
It seems about every time I hear about Facebook it's something like this. While pressure might eventually rescind the no-permission-needed bit, it seems that not once has FB done the right thing and made stuff opt-IN from the beginning. Right now they don't even have an opt-out (the thing of spammers pretending to be reformed). So I vote with my virtual feet and stay the hell away.