For a monthly fee of around $3, au/KDDI customers can now access Napster Mobile through the EZ web network to get full-length songs and ringtones that can be delivered over-the-air directly to their mobile handset for immediate listening and downloading.

This launch on au/KDDI’s network, which boasts over 20 million mobile phone subscribers, puts Napster Mobile at the fingertips of over 60 million mobile subscribers across Japan. Napster Mobile made its Japanese debut in November when it launched on i-Mode, NTT DoCoMo’s mobile internet platform, which is currently used by over 40 million mobile subscribers across the country.

Napster Mobile’s launch with au/KDDI, together with our earlier launch with NTT DoCoMo, now enables the vast majority of Japan’s mobile users to enjoy Napster on the go with their mobile handsets, commented Chris Gorog, Napster’s chairman and CEO. Analysts are projecting that mobile music will become a multi-billion dollar business in Japan over the next few years and we believe Napster is positioned extremely well to benefit from this growth.