Apple is today headed to trial to defend itself in the antitrust case brought against it by the US Justice Department over e-book pricing, Bloomberg notes. The company is accused of conspiring with major publishers -- Macmillan, Simon & Schuster, Hachette, Pearson, and HarperCollins -- to artificially inflate the prices of e-books over the $10 threshold that was once standard at Amazon. The publishers were also involved in the case at one point, but each decided to settle before matters went to trial.