Seeking Alpha reports that China and Iran are Switching to Gold:
(emphasis mine)
Gold rallied sharply Thursday, and is rallying again at the time of this writing on Friday -- it's now broken above the significant resistance range of 740-750, and is currently testing the $800 level. While the technical outlook on the daily chart still looks a bit bearish for gold, some major fundamental news of late suggests the bull market may be ready to resume. Consider: The China and Iran situation is particularly interesting; their decision to switch to gold reserves suggests a reluctance to hold US dollars and US Treasuries. This would increase the likelihood that deficit spending would prove to be inflationary, as it would need to be paid for via an expansion of the money supply. Moreover, while it is probably too early to say for sure, this could be the beginning of the world market making a run on the US dollar, a scenario which many dollar bears, most notably Peter Schiff, have come to expect in light of the rising deficit spending and the very weak fundamentals underlying the US economy.
My reaction: Taiwan has also been dumping US agencies and treasuries. Given the overwhelmingly negative fundamentals behind the dollar, a currency collapse is unavoidable and imminent.

Hold up -- Iran denied they're converting their reserves to gold. Here is one link, for example:
http://www.bi-me.com/main.php?id=27720&t;=1&c;=35&cg;=4&mset;=
Do you have the news source about taiwan dumping US agencies and treasuries? I've only read a news dated last thursday that the chief of the central bank "did not deny increase of holding of US debts"
Here is a Barron article about it:
Taiwan Dumps Fannie, Freddie.
And Uncle Sam?