Whereas the mobile device has become ubiquitous in people's daily life not only as a cellular phone but also as a media player, a mobile computing device, and a personal assistant, it is particularly important to address challenges timely in applying advanced pattern recognition, signal, information and multimedia processing techniques, and new emerging networking technologies to such mobile systems. The 15 articles in this state-of-the-art survey foster interdisciplinary discussions and research in mobile multimedia processing techniques, applications and systems, and bring stimulus to researchers on pushing the frontier of emerging new technologies and applications. This book constitutes the thoroughly refereed post-workshop proceedings of the First International Workshop on Mobile Multimedia Processing, WMMP 2008, held in Tampa, FL, USA, in December 2008, in conjunction with ICPR 2008, the 19th International Conference on Pattern Recognition. The papers went through two rounds of reviewing and improvement and are organized in topical sections on accessibility and learning, server assisted adaptation and networking applications, entertainment, face and speech processing, and development environment.