You have to feel sorry for the gamers of Australia & New Zealand, especially Australia where some games, like Mortal Kombat, get banned due to a flawed ratings system. It seems the woes of those Down Under just keep getting worse, this time the culprit is Blizzard’s Diablo III.
On the official Diablo III forums Australian and New Zealand based players have complained of latency (ping) rates of over 1000ms, making Diablo III basically unplayable in some cases. Not just the multiplayer of Diablo III but all of it, including the single player portion. This has caused some outrage with some players wanting local servers to address the high ping issues, while others are calling for the implementation for the single player to be available offline.
Source: Diablo III Forum