In ubiquitous computing environments like smart home, residents can conveniently enjoy various home entertainments, such as watching TV, listening music, etc, through invisible and virtual interactions between residents and the home accomplished by ubiquitous computing. This paper designs a Ubiquitous Multimedia Information Delivering Service (U-MIDS) for smart home, U-MIDS can automatically deliver multimedia information, such as MP3 music, Internet radios, (Text-to-Speech) spoken online news, and personal spoken messages, to the residents according to their positions and behaviors in a smart home. Basically, the U-MIDS consists of RFID modules, embedded network media players and a U-MIDS gateway. RFID modules are used to identify the identities of home residents and which room they locate. An embedded network media player is a device broadcasting multimedia information to home residents. The U-MIDS gateway can control these network media players to play desirable spoken information,...