What matters in this case is the number of units that were available (now sold) - it's likely a small amount on purpose, since selling out fast is great for publicity.
Though unlike Nexus 7, the Nexus 4 pricing is competitive to the US price - the AUD is worth more than the USD and the Australian price is only $50 more (most of which is accounted by the 10% GST tax.)
Australia still has to pay a little more than the US than justified by tax differences, but it's better than the huge price differences it normally has.
Not sure what the tax difference would take the amount up to, but it was probably priced to just be "near" a round number (with the obligatory 99 suffix).
Also, unless you're planning to peg the price to currency fluctuations, may as well round up to cover that.
Well if they sold out, wouldn't the units available and sold be the same? Unless they are selling units that don't exist yet. Apple does this too, they say "We sold out in x hours" and neglect to say how many units they sold. That info does come out later after the headline wears off.
You are missing the point. If they sold out of 10 units, that is not impressive. If they sold out of 10,000 units, that is pretty amazing for Australia.
Apple usually doesn't say they are sold out, you can just infer it from the availibility dates on the website (e.g. if the store says shipping in three to four weeks). If a product is successful (and all their big products everyone cares about have been, so they have always been reporting numbers on iPhones and iPads) they will usually report a nice round number after the opening weekend (like "We sold three million in three days!").
They will say when they are supply constrained, but that's during their quarterly calls when being supply constrained is properly interpreted as a more negative than positive thing.
Though unlike Nexus 7, the Nexus 4 pricing is competitive to the US price - the AUD is worth more than the USD and the Australian price is only $50 more (most of which is accounted by the 10% GST tax.)
Australia still has to pay a little more than the US than justified by tax differences, but it's better than the huge price differences it normally has.