suraj.sun writes in about the recent small claims case against AT&T's throttling of 'unlimited' plans. From the article: "AT&T has about 17 million smartphone customers on 'unlimited' plans, and has started slowing down service for users who hit certain traffic thresholds. Spaccarelli maintained at his February 24 small-claims hearing that AT&T broke its promise to provide 'unlimited' service, and the judge agreed. In a letter dated Friday, a law firm retained by AT&T Inc. is threatening to shut off Matthew Spaccarelli's phone service if he doesn't sit down to talk. Spaccarelli has posted online th