Which of it? The 3D scanning? They are sufficient to resolve your fingers in 3D; That should last you a while - question is: How far?
You’ve got doc-ok’s old volumetric video capturing with Microsoft Kinects, which are basically the same thing as the Leap Motion, only with optics tuned to a larger volume. They are low res, and jittery as hell (make me think of the “black and white” default avatars from Snowcrash), but hey! :7
They aren’t 3D scanning your fingers. They are taking cues to model a wire frame of a hand and using some logic to restrict the movements to what a hand can actually do. It’s not the same thing as 3D mapping the hand
This is cool but I absolutely have no interest in flying without a yoke. My wish is for yoke and finger tracking to be combined. Can you do both of these at the same time in Aerofly?