As if there was any doubt this should settle the issue:
Microsoft is bowing out of building its own phones for consumers. After dramatically scaling back its Lumia devices last year, Microsoft hammered the final nail in the coffin today with an additional $950 million write off and 1,850 more job losses. Microsoft’s Lumia devices still account for more than 95 percent of all Windows phones sold, but a lack of new devices means sales and Windows Phone market share have declined sharply over the past year. Windows Phone is dead, and phone makers aren’t interested in reviving it.