For those of you wondering what a Web 2.0 world looks like: this is it. Engadget yesterday offered a rumor that both the iPhone and Leopard were being delayed again, this time until October and January, respectively. Thirteen minutes after the rumor went up, Apple’s stock had fallen $4.47–worth a total of $4 billion off Apple’s market cap. The real kick in the pants? The email that contained the bad rumor came from within Apple, according to Engadget.

Filed under: iPhone News