It's notable that despite the claimed joint tracking, the only actual hand interaction shown in that video is knocking something over, not any real dextrous han

It's notable that despite the claimed joint tracking, the only actual hand interaction shown in that video is knocking something over, not any real dextrous handling requiring precise finger motion. I get the impression they made a deliberate decision not to include any 3d handling in the launch demos because it's just not good, whereas 'look and click/swipe' works well.