Scott Forstall on skeuomorphism: infused in Apple's design sense by Steve Jobs since the original Mac

"If you look at the designs we did at Apple we talked about photoillustrative designs, we talked about metaphorical designs, and those were infused in the design sense of Apple by Steve Jobs since the original Mac if not earlier. The original Mac had desktop and folders looking very much like the desktop on which that Mac sat. So we used these design philosophies - it doesn't mean that we loved every single part, doesn't mean that I loved every single part of it - there are definitely things I was less a fan of than others - but we built these designs that worked. And how did we know they worked? You just had to watch people use it."