One target of a ubiquitous computing environment is to aid users in getting necessary information and services in a situation-dependent form. We proposed a location- and orientation-based information support system using the Compact Battery-less Information Terminal (CoBIT). The CoBIT is a small, low cost communication terminal that uses only energy from the information carrier and the user. We realized an example of CoBIT, which downloads sound information and uploads users? positions and orientations along with signs from users. This paper emphasizes the importance of focusing on event space as a first step toward realizing ubiquitous information support. We propose the use of CoBIT as a common terminal. Thereby, service embedded interactive map supported by various types of sensors and displays will be proposed to enhance benefits of the CoBIT.