Agree with everything you say. Hence why I'm just going to be releasing the Lin alg soon. It actually turns out for the linear algebra code done right, the API has an intimate relationship with the possible performance! (This will be more apparent once I get things out the door).

There's a lot ill not be even trying to do in the first release : eg parallelism, distributed computation, sse/avx intrinsics.

Fret not, things are moving apace, and basic tech validation and thence conditioned upon that, public release, are approaching scary fast! :-)