Well normally I would go with that response if it wasn't an article from CNN
http://money.cnn.com/2011/02/10/markets/dollar/index.htm
NEW YORK (CNNMoney) -- The International Monetary Fund issued a report Thursday on a possible replacement for the dollar as the world's reserve currency.
The IMF said Special Drawing Rights, or SDRs, could help stabilize the global financial system.
And while this is quite afew months old and you don't really hear all that much going on with it this article mentions the use of oil and gold for valued assets and more recently there was also a more recent news article about china launching gold vending machines for investment. http://www.breitbart.com/article.php?id=CNG.f4c0cf19383379475a875952cf853bc5.3b1&show_article=1
So if you ask me seems like it's a bit more then just conspiracy if its coming from respectable sources and not some scam site.
The first article is talking about reserve currency. That is different than a world currency. We are currently effectively on a USD standard, but it isn't quite the same as a unified world currency.
As for gold and oil, they might be used in some instances, but it's the same thing as potential reserves. As for the vending machines, that's nothing new- they already exist in the US and many other countries.