J.D. Power and Associates has ranked O2 highest in Customer Satisfaction among UK fixed and mobile broadband service providers. Its mobile broadband service was given a score of 712 out of 1000, followed by T-Mobile with a score of 683 and Vodafone with 655. The news comes a week after T-Mobile said its UK mobile broadband network had topped independent benchmark tests... and just a few months after Vodafone was claiming it had the fastest and most reliable network for mobile broadband. [Sources: O2 press release; Mobile News; Vodafone press release]