Microsoft finally showed off its newest mobile platform this week, Windows Phone 7 Series, which is set to ship by the end of the year.
It actually looks pretty good, though success will depend on a lot of unknowns, ranging from device selection and pricing to app availability to carrier distribution. And it won’t ship until December, which might as well be a decade away.
In any event, for Microsoft, the new product can’t come soon enough. After an early lead in the U.S. smartphone war, Microsoft has lost much of its market share and almost all of its relevance, as BlackBerry maker Research In Motion and Apple’s iPhone have taken over.
The chart below represents U.S. platform share, or installed base — representing both existing devices and new sales during each period, not just new sales. ComScore, the source of the data, uses a poll methodology, and each period represents a 3-month rolling trend ending that month.
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