This document discusses approaches to urban planning and smart cities. It outlines expectations and disappointments with past smart city initiatives, and proposes a new stage of public-private partnerships and grassroots involvement to create innovative technologies that address real urban issues. Specifically, it presents the example of Bristol, UK, which has established an open data initiative between the city and university, invested in high-speed communication infrastructure, and created co-working spaces to foster start-ups that use data and wireless networks to develop localized solutions.