I'm getting a bit worried about Apple dropping out of the business of producing professional tools and rig. I always liked that you can walk into an Apple retail shop and get a decent Unix notebook (though I've opted for a different notebook for my last purchase because of the lack of display, keyboard, and port options). But with Apple pulling out of OpenGL, what little pro (or at least pro enough for me) F/OSS software for 3D (Blender) and other graphical stuff was running on Mac OS won't any longer. I can't imagine Blender has the resources and inclination to port their software over to Metal, especially when Apple deliberately torpedoes their efforts.