Quote from Roark:
What do you think the next best currency will be after AUD? Surely not the Euro. CAD maybe?
I'm not sure it's much of a carry trade but getting long exposure to Chinese yuan is possibly the best bet over the long term. Various economists have said it may be 30-50% undervalued. Maybe if you visit Hong Kong / Singapore you can open an account with a bank there. I haven't done this though.
Long term even if the Chinese housing bubble bursts (quite probably) it doesn't necessarily mean a weaker RMB in the long term. Japan is a case in point - their house bubble burst in 1989/90 with land prices falling 70-90% in some areas and yet twenty years on the yen is stronger.
So if you're talking a five or ten year horizon that would be my choice.
SGD is a decent proxy for RMB I think.
I have a soft spot for South Africa as a country with so much potential so maybe ZAR is worth a look...worst case you can buy a home and live there if the currency collapses!