European Commission regulators have accepted a concession offer from Apple and four major book publishers and halted an antitrust investigation into e-book pricing, Reuters reports. "The commitments proposed by Apple and the four publishers will restore normal competitive conditions in this new and fast-moving market, to the benefit of the buyers and readers of e-books," claims EU Competition Commissioner Joaquin Almunia. The publishers include Simon & Schuster, HarperCollins, Hachette, and Macmillan.