Hey there,
As a (future) candidate for the Google Summer of Code, and a fan and user of Inkscape, I strolled through the ideas page on the website, but I didn't find any mention of a native GUI for OSX.
As far as I can tell, it's not even on the roadmap, which leads me to think that the developing community might not see that a critical or even important.
I, for one, would really like to see that happen. First as a user, because launching X11 on a low-end Mac is just extremely painful and the interface is not always rendered correctly (which kind of negates the possibility of really using Inkscape on OSX sometimes). Secondly, I do think that it could be useful in that there is currently no other free (as in beer) vector editor of quality on OSX, which stays the platform of choice for many 'creatives'.
Finally, as far as I can tell, it looks highly feasible on a technical and temporal standpoint. My only fear (and my main question here), is that I may face an OOo-type situation where the GUI and the engine are so bonded together that using another GUI involves going deep into the general code. It does not seem that this is the case as Inkscape is built on libraries and previous projects, but you never know.
So, I was wondering if that type of project seemed 1) interesting to you (ie : may be a good subject for a SoC participation) and 2) seemed feasible to you as everyday/everyweek/everymonth contributers to the code.
Many thanks in advance for your input !
Sincerely, Tim Anglade