> I thought 2.8 wasn't going to support Powerbooks.

Yes, as far as I'm aware that didn't change. But I don't understand why you mention PowerBook support now. Neither jacadcaps nor me referred to that.

> any idea of what their having problems with?

No. I'm not even sure that there're any "problems" they've with whatever is supposed to constitute the 2.8 release. It could just be that development takes time, as usual.