Chinese exports are cheap, but it's not all lower wages or efficient production. The cost of exports has been held down in recent years because the Chinese government has pegged the Yuan to the dropping dollar. But that may be changing. Murmurs within the halls of China's central bank, and central government, are pointing to an announcement in the coming days that the Yuan may move to a more flexible exchange rate against the dollar. This has big implications for trade, for President Obama, and for American consumers.