(I am not going to ask why we need three packages for OSX).
maybe because it's not easy to make it behave mac-like without modifying the source and making it work diferent than in win32 or linux but if you think it, currently miller distributes binaries for all platforms, hans does his installers and there are linux packages for several distros ... variety is not that bad at this level, i's worse to mantain different branches of the source. I think if / when the impd branch gets into the main devel it may be a good moment to think about it.
...
gerard