[Inkscape-devel] What is proper transform/scaling behavior?

Thanks again for Inkscape, it really rocks. Does anyone know what the proper behavior is for scaling objects via transform attributes? Is the stroke supposed to be scaled or not? I figured there would be just one answer, but the svg-rendering programs are all over the map here:

http://web.mit.edu/jonas/www/anisotropy/

I ran into this when looking at the PS & PDF output of both Inkscape and Batik; at first it appeared to be caused by people assuming SVG's transformation matrices worked the same way as ps, but then I can't quite figure out what the hell the Adobe SVG viewer is doing...

So I'm curious to know what the Right behavior is, or if this is an ambiguous region in the standard...

Thanks again, inkscape is amazing...

...Eric