Here's a novel way to interface with desktops I haven't thought about: userland.org, also found on Github.

It sits somewhere between Plan9's Rio and Arcan's Durden, which also needs a big mention for it's innovation in thinking about the desktop as a multimedia/game-engine pipeline. UserlandOrg reimagine the desktop as a sort of spreadsheet, columns piping into one another.

Initially, I was confused as for the purpose of this, neither did I get why someone would use the whole desktop as a spreadsheet instead of a specialized software. And that's not to mention the synth feature as a module.
But then I remembered the initial use-case that UNIX had: A text editor for the paperworks busy people had to do. And today, that's the equivalent of people working on spreadsheet, so there's a small extension there.

Maybe it's useless, but it's different at least and let us imagine other possibilities.
What do you think?