Mobile
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As the smartphone industry boomed beginning in 2007, Microsoft struggled to keep up with its rivals Apple and Google in providing a modern smartphone operating system. As a result, in 2010, Microsoft revamped their aging flagship mobile operating system, Windows Mobile, replacing it with the new Windows Phone OS; along with a new strategy in the smartphone industry that has Microsoft working more closely with smartphone manufacturers, such as Nokia, and to provide a consistent user experience across all smartphones using Microsoft's Windows Phone OS. It used a new user interface design language, codenamed "Metro", which prominently used simple shapes, typography and iconography, and the concept of minimalism.