This document discusses the role of cloud services in developing next-generation mobile apps. It defines next-gen apps as being mobile-first, incorporating social capabilities, context awareness, access to multiple enterprise data sources, and an immersive experience. It then outlines options for mobile app development including client-side, server-side, and using public cloud services. The document introduces Appcelerator Cloud Services as a mobile backend as a service (MBaaS) that reduces development time and costs through pre-built services and APIs.