People like Joe Armstrong have done really good work with the shared-nothing approach. You see that a lot in custom systems in browser implementations. Chrome is big on it. We do it our own way in our JavaScript implementation. And shared nothing is not even interesting to academics, I think. Transactional memory is more interesting, especially with the sort of computer-architecture types because they can figure out ways to make good instructions and hardware support for it. But it's not going to solve all the problems we face.
