I'm running a copy of iTunes 8 right now, and I disagree. I also disagree that the old style of design is less suited towards complicated software. Apple's iWo

I'm running a copy of iTunes 8 right now, and I disagree. I also disagree that the old style of design is less suited towards complicated software. Apple's iWork software feels like it's suffered the most in terms of usability as a result of modern UI design. Humans evolved in a world where things have depth, light and shadows. Even you admit that back when user interfaces were designed with that in mind, those interfaces were more friendly to novices. By ignoring these aspects of our visual perception, you're requiring prior knowledge on the part of the user, while simultaneously making it difficult to acquire that knowledge. That's not a good thing, even if you assert that "flat" interfaces are no worse once you get used to them (which I clearly disagree with).