I'm not sure that per capita would make too much difference. I imagine they allocate stock based on per capita anyway. 
 
Doing the maths, US works out to 0.005 while Aus works out to 0.00045. So roughly 1 in 1000 yanks have one, while only 1 in 10,000 Aussies have one. 
 
Though I agree, if we could get the stock, things would probably be different but I imagine that's the same everywhere. 
 
@Tim, I've also been waiting for launch for my pre-paid 16gb. I've heard they may not appear to November, but I continue to wait. I've been told by a Telstra employee that there's rumors that Telstra will start selling outright in the next week or two. Apparently when they start advertising business plans they'll also be selling outright. (This is in WA, but presumably holds true everywhere) 
 
Here's hoping I get one before the end of the month when Apple launches in another 20 countries and have even higher demand vs supply...

we would have sold alot more if we had the stock, every 5 poeple i talk to, ether are waiting for iphone or just can't get one because theres no stock

@Tim 
I wanted a prepaid (16gb black), kept being told that prepaid would not be instock until around xmas or even up to feb next year, so i decided to go contract and i had my 16gb black iphone in 4 days. 
 
they just don't want people on prepaid.

It doesn't help that some people are still waiting on iPhones in Australia. I have been waiting on my prepaid iPhone since day 1!

Yeah, take it in to a per-capita perspective and amount of units actually available in each country, im sure we'd be up there.

@Macca 
what would be much more interesting is a graph showing x1000 units sold *per capita*. We iz but 20M after all -- tiny country!

Damn, we're nothing.