More on David Gibson. Hunting around I found what appears to be his website. I was amused to find that the visuals don't appear to have moved on from the time that video was made (1990 or so?).
http://www.globerecording.com It pushes his "virtual mixing" software which seems to be the same 3D representation of mixes seen in the video, only you can mix by using a virtual reality glove to "grab" mix elements and move them around.
I'm curious as to how old this website is because it looks like it was frozen in time. He has his email address with @'s written as (at) and .'s written as (dot), just like the old days. However it appears that it's still updated because it talks about upcoming classes etc.
I'm not mocking the guy, I think his video is fantastic, I'm just kind of amused by the whole retro-web feel of it all.