I was expecting to see something more interesting. Looks like he basically just used it to float a monitor and Apple Notes over the patient. Which surgeons usually just do with a LCD display and a VESA mount arm on the ceiling.
I guess the cool thing is that you don’t need to touch a display. It’s all hands free and super sterile. That said, it’s not doing anything that you can’t do now for 1/4the the cost.