Sony Ericsson will offer in Japan a Walkman cellphone next month that will enable users to download music onto their handsets in a partnership with No. 2 mobile carrier KDDI, both sides said Monday.

Sony Ericsson, Sony's mobile-phone joint venture with Sweden's LM Ericsson, already offers a Walkman phone that's a portable music player in other parts of the world.

Read the complete story here. (USA Today)