I played your Mac OS extended version last night and enjoyed it a lot.  The additions add a lot of flavor to the game, and also made me visit star systems that I don't usually mine.  I especially liked the Precursor starbase and the dead starbase. 

I ran into many of the same problems that others have enumerated: the transition from conversation to combat seems to cause the game to exit to the menu every so often. But if you save a lot, this isn't that frustrating. No single event consistently caused the exit in my experience. 

One other thing I noticed: I couldn't ask the Mycon at their homeworld the "Why do the shattered worlds only occur in your area of space?"  But this didn't effect my ability to complete the Syreen plot.  Maybe I've just forgotten how to activate that dialogue with the original sun device dialogue restored to the game.

If you ever come back to this mod, one other thing you might add are Androsynth/Precursor archeological remnants at Alpha Lalande where they discovered the device that got them noticed by the Orz (per the flavor text on the Androsynth homeworld).   

Anyway, thanks for making this, and giving me a reason to replay SC2 again.