I missed LDI this year, and so I missed this interesting booth from LaserNet/Pangolin:
From all the breathless hype in this press release, it's hard to tell what's really going on here, but it looks like he's controlling the upper and lower scanners by putting his hands in the blue vertical beams. If anyone knows details, please post a comment.
UPDATE December 4, 5:43pm:
One of my students, Irene Iarochevitch, found information on the control aspect of the show, she says, "The blue vertical beams are actually "The Hydra" - an interactive instrument invented by John Laraio (MOBIUS 8)."
Here's a video I found of it in action with a little behind the scenes info: