The Unity docs for PositionalTracker state:
"The PositionalDeviceTracker publishes DeviceTrackableResults that are are in world coordinate system and use a physical unit (meter)."
This is nice, but how can I access this published information?! In the Unity docs, I cannot even find a reference to a DeviceTrackableResults type.
Could it be that this is a copy & paste error from the native docs and it hasn't been implemented in Unity?