Sure is. Along with the rest of the US West servers as far as I can tell. That Aussie specific server problem may not quite be that.
We're consolidating discussion on the server outages today on this thread that Alex stickied, http://forums.station.sony.com/ps2/index.php?threads/11-21-server-downtimes.48793/
Would you prefer that we hear nothing for a few hours as with other developers such as Bli##@rd? I do appreciate hearing something even if it is a "hey, s#it hit the fan.. we're looking for the mop."