If you looked at something like MacPorts or Fink, you would see that installing $randomPackage is as simple as "sudo (fink/port) install packagename"
Oh, and last i checked, NeoOffice worked fine (And OpenOffice is finally getting around to finishing a native Mac port). So, um, it has been supported since day one. If you bothered searching and finding it. But it's not Apple's fault OO.o doesn't advertise their product in a way to get on your radar.