you are aloud to add fetures to this perfect opperating system from other os's so to start the boat i would want
osX minus the dock, any use of the apple any where,widgets
os 9.2 (apple before osx) use that file organisational system its alot more simple
and last ninja directx10 (because opengl is old and hasnt been touched since doom3 for mac)and the windows gadgets (aero can stay with windows as osx has a less powerhungry versions)