When was the last time you could actually buy a tablet, laptop,
desktop, cell phone that didn't support IPv6?
I have a Samsung SCH-S738C "Centura" phone running Android 4.0.4. It
does not support IPv6, and it's for sale all over the U.S. It's not a
bad phone for $40.
Perhaps things are different in oz, but it's still going to be a very long
time until we can ignore all of the v4-only devices that people use
every day.
R's,
John