Daniel Briggs and I were discussing this morning the coolness of parallax scrolling, which quickly led into even geekier notions of dual tandemized VFX interfaces that had pseudo 3D icons.
Have you ever looked through a chain-link fence at something and then the fence pattern lines up with itself and you get this weird trippy false-depth thing that happens?
No, just me? How about this one: have you ever put your two pointer fingers together in front of your face and looked past them and observed the mysterious floating finger sausage?
It's not a new trick to take pictures from two angles at a common vanishing point and mash them together to reveal depth. Usually it's with the aid of some apparatus (like a Viewmaster!). But if you do it enough, in your undergraduate remote sensing courses for instance, just before you go permanently wall-eyed you can get so that you don't need the stereoscope glasses doodads. Are you able to focus your eyes "behind" the monitor so that these dual images below slide together into one?
P.S. Randall Munroe of the great XKCD.com has a great comic about stereoscopy with webcams, a smartphone, thick reading glasses, a formidable imagination, and a beautiful world: http://xkcd.com/941/