The move comes two and a half months after Apple banished Google from providing the core maps experience on the iPhone and iPad because of a dispute over advertising, revenue shares and the provision of those navigation and vector functions.

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In a speech earlier this year, he cited the importance of precision-target advertising, real-time search functions, e-commerce, revenue-sharing with third-party software and games developers as well as payment for digital content.

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Instead they view it as the role of senior executives, or of functions like corporate communications, marketing, advertising, or public relations.

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