I was recently reminded of this application for Windows, Tactile 3D. It's a fully three dimensional file manager, and actually allows file operations to be performed within it, as well.
It looks cool aesthetically, but is cool to use in practical terms, as well; it allows for spatial relations between files, among other things.
It got me wondering; is there any possibility of an equivalent being developed for FOSS? Before you tell me to do it myself, I would, but I have no clue whatsoever where to start.
I feel that something like this, however, could be a major coup for Linux. I know Linux has compiz, but all the spinning cube really amounts to in practical terms is a cute way to access virtual desktops; there's no genuinely novel usability there.
With something like Tactile, however, there could be. So it would be good if we could find someone out there with the technical chops to be able to pull it off.