One of the nice things a variable rate gets you is that when times get tough, your payments go down. People started to default here and the RBA (Reserve Bank of Australia) immediately plunged the interest rates. You could look at that two ways:
1) They artificially kept people in houses they can't afford.
2) They saved the market.
I think it's a bit of both. I think they expect some people to default in the next few years, but the unemployment is only 5% here and we essentially didn't have a crisis. So if it happens in a smooth bit by bit way, I don't think we'll see a gigantic crash like what happened in the US, but it will be a dip, and I'm hoping to buy at the bottom.

The other thing that's a bit odd here is they have a thing called "Negative Gearing" which essentially means you have an investment property that you rent out for less than the mortgage payments. The tax write offs are so high, that in many cases it makes more financial sense when things get tough to find your own rental, move out of the house you own, and rent the house you used to live in out for less than your mortgage payments are. You end up with more income (enough more to make it cheaper to make the payments that way). So when things get rough, the rental market gets lower here, and people use negative gearing as a way of continuing their payments.
As far as the US not being the only place to screw it up, definitely! We did better in some respects. The banks here are much more highly regulated, which is one of the biggest reasons we avoided the crisis. We didn't have a single bank close here, as they all have to have more capital on hand to cover things like defaults. We also didn't bail out the banks as none were going to fail. Everyone earning less than a certain amount ($120,000 I think) got $900 cash from the government in the middle of the year, and that was our bail out.
Oh, and as a side note, since the US government counts foreign income as taxable income but gives us deductions and credits for living abroad, I got $300 from the IRS this year without having paid US taxes for 3 years now. Thanks guys! Trying to tax foreign income cuts both ways!

I used to be annoyed that I had to fill out a US tax return every year, convert all 52 of my paycheques from AUD to USD at the exchange rate that was applicable the week I was paid, on and on and on, but if you'se are going to pay me for the service then I'm not anywhere near as offended by it.