There is a long list of technologies in Mac OS X that could be used to improve Wine on OS X. One of them is ColorSync. ColorSync is a color management software that is HEAVILY integrated into the Mac OS. For instance, you can calibrate your monitor and when OS X starts up, it will read the color profile file and adjust the graphics card output. It will also do color correction automatically in, e.g. Preview to get the best out of an image.
However, I do not know how ColorSync influences Mac OS X's X11 system. It is possible that in order to take full advantage of ColorSync, a Mac OS X native front-end will need to be developed. Another interesting Mac OS X technology is Image Capture. This technology is used by the OS to scan images from a scanner as well as import images from a camera (iPhoto). It provides a wrapper around TWAIN drivers so they can be used by applications that don't support TWAIN. This is a purely C Framework. Although a sub-framework of the Carbon Framework, the functions are available in 64-bit code. This should not be confused with the ImageCaptureKit framework, which is most likely an Objective-c wrapper around the main Image Capture framework.
