This document discusses how public-private partnerships (PPPP) combined with community collaboration (CoCoCo) can lead to smart cities (S+CC). It notes key milestones in the growth of connected devices from 300 million in 2004 to an estimated 1 trillion by 2021. The document outlines Cisco's vision for a 4th utility of connectivity and cloud-based services to power smart city applications and platforms. Examples are given of mobile apps in Busan, South Korea that provide community services using an open development platform.