I worked on a similar project - the Stanford braindrop chip. It's a really interesting technology, what happened is that most people don't really know how to train those systems. There's a group called Vivum that seems to have a solution.

I work with QDI systems, and I've long suspected that it would be possible to use those same design principles to make analog circuits robust to timing variation. QDI design is about sequencing discrete events using digital operators - AND and OR. I wonder if it is possible to do the same with continuous "events" using the equivalent analog operators, mix and sum.