A case study showed net savings of 90% in phone-and-operator costs for the company. ... This profile resembles the a#39;early adoptera#39; of the PC era, as Japanese men born in the late 1 970s grew up with Gameboy and Tamagotchi. ... Also, despite its advanced features, i-Mode is still not utilizing natural Japanese- language text input. ... Telecom a owned by Japan Railways This manual, published by Shufunotomo Co., is just one of many showing how to customize a cell-phone melody.