Hmmm I have to completely disagree with you there thatguy.
Firstly, China wants our resources more than we want their thingamajigs. With a high AUD it makes importing our resources more expensive in RNB terms. They would prefer a strong USD and a weak AUD.
Let's see a high AUD may expose the fact that in real terms Australian productivity has been falling steadily for years. It will force us to be more productive or see jobs and sectors go offshore to those that are more productive.
A high AUD reduces inflation and the need for wage increases which makes us less productive in comparison. The low AUD for all those years simply masked Australia's decline in productivity. The rise in the AUD just brought about the wake up call.
Part of the reason the AUD is so strong is because investors want to cash in on the high productivity of China and because it is hard to do so, they use us as a proxy.
Artificially keeping a currency low sure does make a country in exchange terms seem more competitive but it is only temporary. If the US and Europe actually had a choice in the matter they would keep their currencies strong and reform their economies to be more efficient. The easy political choice is to inflate/devalue to do the work for them in the short term.
China could easily allow the RNB to increase in value and still be more productive than the rest. By not doing so is creating a bubble that will have disastrous effects down the track and they will be forced to do so.