Has to be the stream from foxsports australia.
They ve been using a number of people, changing depending on the game...
According to an article:
"Australia's most experienced commentary team including John Eales, George Gregan, Phil Kearns, Tim Horan, Greg Martin, Rod Kafer and Greg Clark; featuring five members of the Wallabies 1999 World Cup winning squad (Eales, Kearns, Gregan, Kafer, Horan)"
I can also add that they have used piennar too at some early stage (think it was japan-SA).
Now I have no idea who was commentating last night as I watched channel 9's broadcast.