Articles like this help to show all the work involved in the path from a vague idea to a finished product. That's the hard part. Guess that's why they get upset when some other company just sees the end product and just makes a clone of it, without having to face all the hurdles to arrive there from the initial idea..
Except that the other companies have done essentially all of the hard work this article talks about themselves, and more, and have been doing it for years before Apple entered the smartphone market. I mean, many of Apple's problems were with stuff like baseband development and antenna placement which their competitors have been dealing with successfully since before the iPhone even entered development.
If anything Apple were the ones that came along after other companies had done all the hard work and piggy-backed on their work whilst claiming the credit. Companies like Nokia and Motorola literally developed the technology that made mobile phones possible, and had to build stuff like phone radios in an era where no-one had ever done it before, whereas Apple could rely on pre-existing chips, software and design experience. Then Apple sued Motorola to stop them selling phones whilst insisting they didn't have to pay Motorola for the patents they'd obtained through doing all that pioneering work.