Yes indeed, after using them in MOI I unconsciously began drawing them in other apps - with no success :)

Spaceclaim's system works on selection of 1 or more entities, where the selection is not limited to one entity type - and produces reference points, lines, planes and curves; in 2d and 3d mode. Both systems have the big advantage that you don't need to manage these myriad entities. However Spaceclaim still lacks your innovative snapping system: I love how intelligent the inference system is, particularly in regard to mid points of lines, circles and quandrants that persist beyond the initial sketching phase(in any view) and that the various possibilities(eg. intersections,perpendicular connections, etc) have dynamic local representations in the form of suttle crosses.

There are a number of innovations of this type, the reference system included, which I think you deserve recognition for, in the form of patents - much as the early Alias|Wavefront marking menu system did.