As written before, we will not release the plugin, before it is practically useful for game development.
The downloadable demo we released last year showed what we could do at the time. It worked acceptably fast only for up to 5-10 moving obstacles, at most 1-2 animated. Interface with existing rigid solvers was not really feasible.
In the last half a year we developed a new learning method for handling rigid bodies. We train a data representation, which allows calculation of operations on meshes (collision, occupancy, distance, projection, …) super fast and scales well with the number of obstacles. It supports rigged meshes (could be pre-animated, simulated or controlled for example by kinect) with almost no overhead over static meshes (demo supported only pre-processed baked animations), So far we implemented only interactions of rigid / animated objects with fluids, but it is designed to work well also for interactions between rigid bodies (not implemented yet). It looks very promising and we assume it will end up much faster than existing rigid body solvers.
Regarding fluids, we implemented adaptive-size particles, which speeds up simulation part of the algorithm (not surface generation and rendering) approximately 2x with no visible difference. There is a lot of more work to be done there.