This document discusses smart cities and some of the key challenges involved in developing and implementing smart city initiatives. It notes that smart cities can mean different things to different stakeholders like cities, businesses, and citizens. Some of the main challenges outlined include the complexity of cities and governance, developing an ecosystem of solutions and vendors, limited funding, and security issues. The document emphasizes that innovation does not require the latest technologies, and that collaboration both within and between cities is essential for smart city development. It presents examples of collaborations like Taiwan's Go Smart initiative and China's P.A.T.H. initiative. The conclusion is that moving forward will require engaging all stakeholders and focusing on solving real problems through proven as well as emerging technologies.