[borismus]

Yes, Apple is really good at creating usable, beautiful user interfaces and vertically integrated solutions. Yes, it's very difficult to quantify this, and yes consumers get it. However, Apple isn't the only company focused on getting the experience right.

Once the UX of a competing platform/product is on par (modulo product/company loyalty), Christensen's low end disruption model kicks in. The way Apple can continue winning is to be ahead of the curve, creating new features and product categories that can dominate, until the low end disruption model catches up to them.