Tuaw reports that there is a new study out that finds iOS outranking Android, Windows, and BlackBerry phones in user satisfaction. The graph shows iOS 6 and 7 beating out the other three competitors in a study that includes four main categories: cognitive load, efficiency, customization, and user experience friction. The results are based on a study by Pfeiffer.

mobileOSuserexperienceindex-1024x423

source: Tuaw