The 25 Most Influential People at Microsoft - 18. Pieter Knook (
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18. Pieter Knook, Senior Vice President, Mobile Communications Business Microsoft's Windows Mobile business has hugely grown under Knook's leadership. Mobile is a strategic business that will grow in importance, particularly as more handsets are used for data as well as voice. Microsoft is heavily investing in mobile technologies, particularly as it looks to future advertising revenue possibilities. Knook's star also is rising.
