The document discusses the importance of user-facing, patent-protected differentiators for mobile device manufacturers to compete with Apple. It states that manufacturers need to innovate through acquiring or developing patented features that consumers see and value to drive purchase decisions and brand loyalty, rather than focusing only on internal specifications. Developing these differentiators and protecting them with patents prevents competitors from quickly copying the features. The document recommends manufacturers pursue strategies to rapidly bring such differentiators to market in their products.