NTT DoCoMo is launching an i-mode Disaster Message Board service that will allow subscribers in Japan to post personal messages for friends and relatives who might not otherwise be able to contact them in the immediate aftermath of a national disaster, such as a high-magnitude earthquake. NTT DoCoMo said that should a major disaster occur, its network will undoubtedly be extremely busy as -- in addition to the heavy traffic among administrative and relief agencies, ordinary users in the affected locale typically attempt outside contact to worried...