It suddenly becomes possible for musicians and instrument designers to collaborate to create custom instruments for an album, a song, or even a part of a song. The designer doesn't even have to know how to program DSP, only edit with a familiar Modular Synthesizer GUI.
This is a subtle video, but a high-impact project, I'm quite in love with it.
Here's their Indiegogo (they're out of Belgium, not U.S.), which I'm proud to support: http://igg.me/at/axoloti
Here's a little writing I did on the project, talking about specifically why I think this is so valuable: http://diydsp.com/livesite/pages/axoloti
And of course, here's the github for the Axoloti :) https://github.com/JohannesTaelman/axoloti/