The mobile and context-aware application domain presents challenging requirements to software development. Although several solutions have been proposed for this type of application, reuse is not systematically used throughout the software development lifecycle. Then, in this paper we propose an approach for the development of a mobile and context-aware Software Product Line (SPL). A SPL for the mobile and context-ware mobile guide domain is presented in order to illustrate the steps of the proposed approach. Furthermore, the lessons learned in the SPL development are discussed. Both approach and SPL are the main contributions of this paper.