A federal judge has granted class action status to a monopoly lawsuit against Apple and AT&T. The lawsuit claims that actions taken by the two companies are hurting competition. It is alleged that Apple secretly made AT&T its exclusive iPhone partner in the U.S. for five years. Consumers agreed to two-year contracts with the Dallas-based wireless carrier when they purchased their, phones but were in effect locked into a five-year relationship with AT&T. The lawsuit seeks an injunction to stop Apple from selling iPhones locked into AT&T’s network, and more freedom for installing software to the smart phone.