It is likely that these features were canned once Microsoft realised that the Lumia line and Windows Phone, in general, were going nowhere but down. Samsung’s Android handsets already offered many of these features for users who would want them, and active sides feature–while a pleasant surprise –would not have moved the needle. Arguably, Microsoft’s focus on Continuum for the Windows flagship would have been a wise one if there were more available Windows 10 apps. Ultimately, this is just a demonstration showing what might have been. It’s unlikely that this could have saved Windows phone, a little effort put into the Lumia 950 family of devices would have provided a device that was less awful than what ultimately came out
