This is a good article, but the spec has been dead since the release of the first iPhone. (Maybe earlier, but that was when everyone talked about it.) Apple showed that users don't really care about spec unless everything else looks the same. When all consumers have are rows and rows of identical-looking computers, they pick the one with the highest numbers. When they have a single piece of hardware, with no specs at all, but which behaves intuitively and does what they need, the spec doesn't matter.

Everything the article says follows from that.