Overall both Apple and Microsoft's operating systems scored an impressive 8.7 out of 10. Android scored 7.9 and BlackBerry scored a low of 6.8.
While Apple and Microsoft rated the same for overall satisfaction, Windows Phone actually received slightly higher satisfaction ratings than iOS in several key areas, including reliability, text messaging, Web browsing, and gaming. Apple's iOS, however, rates substantially better than Windows Phone for satisfaction with the quality and availability of apps and its music player.
When smartphone owners were asked how likely they were to recommend their phone to others, iOS received a rating of 9.2, Android scored 8.2, and Windows Phone scored 8.8.
While Windows Phone 7 has failed to gain popularity despite its excellent reviews, Microsoft, Nokia, and AT&T are about to launch a big marketing campaign for the new Nokia Lumia 900.