Here a motion deformer for maya done in c++ which simulate motionBlur directly onto a mesh.
This tool write custom VertexColor attribute onto the mesh that can be used with sOup for particle emission. Can be also use for emiting Fluid on fast moving mesh emitter and avoid stuttering effect.
Different parameter are available : speed scale, deformation amplitude, clamp, us textureMap, reverse motion, do Squash & Stretch ...
malcom rig from animschool.com