I think the article needs to rewind back that first picture of the Sidekick and the iPhone 1: UI and UX with a relation to software are 2 sides of the same coin, even if they are done by seperate people.

Apple's UX designer looked at the hardware keyboards and said 'that is useless space when the keyboard is not in use; what if we had a keyboard that popped up when the user needed it?' and then sent the UI designer away to design and code a solution to that problem.

As I often comment on many of these articles, UX Design is a much bigger picture than software. User Experience is how I queue for stamps at my post office, how I navigate my city in a car and how I program my washing machine. It is signage and the manipulation of the movement of people and the buttons on the front.

I often refer to UX as Process Design because when designing a product every process is part of the user experience. Obviously every interaction with software is a process, but UX is much bigger than software.