Pervasive Computing Systems are focusing on the development of applications that can be an integrated part of our environments without using classical types of computer hardware and where the user can interact with them by natural way and without using computer equipment (e.g. keyboard, mouse). Project will focus on the development of a completed environment of editing and distributing digital signage content. The output devises for the content will be rear projection screens where the user can interact through touch (rear projection touch screens). Project approach will focus on both the marketing and the technology aspect of digital signage. In chapter 6 the term “Digital signage” will be determined and analyzed thoroughly. The main factors of a successful digital signage approach will be examined. In chapter 7, a detailed introduction on pervasive systems will focus in the future visions on “Disappearing of Computing”. Information on pervasive display systems and touch screens will be provided in this chapter, since the output devices of the implementation of this project will be rear projection screens where the user can interact through touch.