"Among other things, Chinese officials have worried that online currencies could ultimately serve as an alternative to China’s official currency, the renminbi, and have an impact on the country’s financial system." --NYTimes on China's limiting virtual goods trading and sales.

Wowza. It says something about the confidence in the official currency that the government is worried about getting destabilized by a virtual currency.

Of course, it also says something about how many people are playing online games!!