Apple's customer satisfaction scores for its iPhone in the U.S. slipped a bit from a year ago as Samsung surged. The big questions revolve around whether Samsung can maintain its momentum in 2013 at Apple's expense.
According to the American Customer Satisfaction Index, Apple still dominates the smartphone category with a score of 81, down 2 percent from a year ago. Samsung had a score of 76, up 5 points from 2012. Nokia also had a score of 76.