How has Apple been able to sustain its competitive advantage in the smartphone industry?

Question

Quizplus · Accepted Answer

To sustain a competitive advantage, a firm must continuously innovate-that is, it must produce a string of successful new products or services over time. In this spirit, not only has Apple introduced incrementally improved iPhones, but also the firm has launched other innovative mobile devices such as the iPad line of products, multimedia tablet computers created with the intent to drive convergence in computing, telecommunications, and media content.

How Has Apple Been Able to Sustain Its Competitive Advantage