"Remember that pricey Superbowl ad for Pepsi, the one that promised to give away 100 million iTunes songs to consumers who found a winning message under Pepsi bottle caps? Maybe Pepsi should have tested the concept before they shelled out millions on the Superbowl ad. In the last week, people have been complaining that the sugary soda is responsible for erasing the ink on the inside of the bottle caps making it impossible to tell if they've won or not." More