We have been exploring adaptive spatial user interfaces to make the users more active and productive. This paper presents our proposal based on our recent efforts on realizing the vision of adaptive spatial user interfaces. For example, Ambient Suite enhances communication among multiple participants. With Ambient Suite, the space itself works as both sensors to estimate the conversation states of participants from nonverbal cues and displays to present information to stimulate conversation. Another example is AI-Supported Meeting Space, in which the space itself behaves as “another participant” to make the meeting more productive. The system periodically provides the participants with some information related to their discussion topics on the surface of the table and walls. We believe these adaptive spatial user interfaces fit the recent changes in working style and contribute to the improvement of our quality of life.