I was poking around for info on one of the voice actresses for this upcoming show, Ryoko Tanaka, who voices Yahiro Ifukube. I thought that given her range (go listen to her voice sample on the Yosuga No Sora anime website, then listen to her performance as Hinata Kagura
here) she should really be getting more mainstream anime work.
After searching for her Japanese name (田中涼子) in google, a lot of strange things turned up, especially for images. Is she an AV Idol or something? Is that why she doesn't get more mainstream anime voice work rather than eroge and ero-anime?