Very recently, mobile devices as intelligent data terminals have become widely popular in the world, which are expected to contribute to medical/health information and communication technology (ICT). As it is recognized to be critical to share medical/health information between patients and healthcare providers electronically, a variety of electronic health record (EHR) and personal health record (PHR) systems have been developed. Furthermore, advances in mobile and cloud computing technologies nowadays enable us to transmit information anywhere at any time, and provide better environment for EHR/PHR. It will be of great importance to promote research and development of a novel mobile/cloud system to integrate dispersedly stored pieces of patients' healthcare information into virtually combined one. Those records include not only static previously collected medical records, but also currently occurring dynamic data of patients such as vital signs, adherence to medication, and emergency medical records. We particularly focus on better clinical outcome, as well as efficacy, safety, and security matters achieved by those innovative systems in the various medical/health fields. Through development of new sensor devices and ICT, a systematic methodology would be strongly required to establish virtual space of ubiquitous health information.