It's all just noise right now, but the United States Justice Department is purportedly having a "very preliminary conversation" with Apple regarding the company's music business, wondering in particular if anything it's doing (or has done) would violate antitrust legislation. According to unnamed sources familiar with the situation, DoJ staff seem most interested in whether or not Apple's dominance in the market enabled it to unfairly prevent Amazon's music service from exclusively debuting new songs. Beyond that, details of the investigation are few and far between, bu