Ever heard of DoCoMo? probably not, unless you happen to live in Japan. NTT DoCoMo is one of the world’s biggest wireless phone companies. It operates in a ferociously competitive market, boasts about 50 million customers and has been known to produce cutting-edge technology. By all rights it ought to be a star performer in the increasingly global business of wireless communications. Yet DoCoMo’s brand is still virtually unknown outside its home country.