Docomo, Japan’s No.1 cellphone carrier, has opened an official Facebook page today. “New Smartphone Review” page introduces their latest 9 smartphones and asked users to comment. “Message Card” corner lets you send a Docomodake message card to your Facebook friends. Docomodake is a mashroom character of Docomo. No.2 KDDI au announced its alliance with Facebook on May 17th. KDDI au has an official