Sony Ericsson today adds its first UMTS handset to the Walkman range of music phones bringing the total number of phones in the range to four. The W900 is a high quality fully specified music player, phone and imaging device capable of super-fast downloads of all types of multimedia – music, video and graphics. It follows the highly successful global market launch of the W800. Two previously announced Walkman phones are also about to launch, the W600 in the Americas and W550 in the rest of the world, meaning there are now Walkman phones meeting a broad spectrum of mobile music needs and price segments.