[Daiz]

>2. Identify proper use cases.

SIMD is used a lot in all kinds of things dealing with video, so that's one area where it could find uses. I wouldn't mind being able to do (realtime) video processing in the browser. Some relevant reading that mentions SIMD.js briefly (though mostly that it wasn't really useful at all at the time of writing):

http://tp7.pw/articles/javascript-video-filtering/

[mcintyre1994]

Physics simulation is a pretty big one too - at least it's what we used when we were learning to use SIMD intrinsics in C.