thanks for detailed info. it is difficult to determine actual impact of kinect on wmr. there is no need to be on beta.
best is kinect sdk. and there you can run Skeleton Basics app. it does not matter if that is tracking anything as long as it is pointing are you work on. this is to determine if there is any impact of IR light from Kinect.
i got my Dell just purchased and will be shipped in next 1-2 days 🙂