Well penetration of WP is down yeah, but that only makes sense when Nokia Lumias immediately disappeared from shops upon announcement of the MS Lumia devices, a

Well penetration of WP is down yeah, but that only makes sense when Nokia Lumias immediately disappeared from shops upon announcement of the MS Lumia devices, and when MS did not market or promote those new devices very much. The 950 range was also largely unavailable due to stock levels. So for about two years there you couldn't buy a Lumia even if you wanted to. So it's not surprise that usage went down and that consumers weren't interested. But my question is what was the corporate strategy? Did they see the success of the Lumia line and wanted control of it? If so, why did they immediately fire people and stop development of new devices?