One could devote a course to Apple's ability to rewrite business/design strategy during the past thirty years - the information age.
The company under the leadership of Steve Jobs seems to fare much better than other companies at growing a profitable and stable organization.
Their latest success that was profile in the NYTIMES is Apples venture into retail has succeed when others: Sony, Gateway have not. Apple's successes seems so simple as to think their choices were obvious, but if the key decisions were that obvious more businesses would be successful. I would say the key factor is that the value given to design and users experiences allows the organization to keep its eye of on the elements that engenders committment/connection with its customers.
MIT Techonlogy Review Article