This document is a presentation by Jim Ayson on the mobile apps ecosystem. It discusses the transition to a post-PC world driven by smartphones and apps. It defines what an app is and describes the app economy and ecosystem, with over 25 billion apps downloaded from app stores. The mobile operator's role in the ecosystem is discussed, including providing APIs for developers and operating their own app stores. The presentation concludes with details on Smart's involvement in the Philippines' app ecosystem through their developer program, app store, and efforts to support local technopreneurs.