Awfully decent of you Microsoft, but ...
I would expect the OS for an embedded device to be slick and unobtrusive. This thing looks anything but.
Universal Windows Platform? Not impressed from the PC experience. The clincher for me, though, is that the privacy statement implies the same level of unavoidable monitoring and telemetry as the PC previews.
Those two things alone would make trying this out a pointless exercise. So thanks, but no thanks Microsoft - you're not getting a slice of my Pi.