This volume presents carefully revised texts of selected lectures given at the 13th EUNICE Open European Summer School and the proceedings of the conjoint IFIP TC6.6 Workshop on Dependable and Adaptable Networks and Services, EUNICE 2007, held at the University of Twente in Enschede, The Netherlands, in July 2007.

The 17 revised full papers presented were carefully reviewed and selected from numerous submissions. The papers are organized in topical sections on middleware and supportive services, context-awareness, voice over IP, user behavior, security and legal aspects, performance aspects, and novel architectures.