This is something that scares me. Since linux had a large dominance on ARM, it was common to vendors to make drivers for their devices. By making drivers, I mean get the driver properly mainlined. Of course, there always existed the mostly proprietary and closed board support package but it was to their disadvantage and there was a huge incentive to write drivers.

My fear is that, with windows becoming popular on ARM, this incentive will disappear and linux support on these machine will be weak.