ZDNet.com reports that a city-wide Wi-Fi project in Tempe, Arizona can provide examples to other cities looking to incorporate similar projects of their own. Tempe’s project is already further along that most other municipal projects designed to offer broadband internet access. Two years ago, Tempe city planners decided to offer Wi-Fi access to the city’s 160,000 residents. Without the aid of tax dollars, they aimed to provide wireless internet service over the city’s 40 square miles. Along the way, the plan has experienced its fair share of setbacks. However, the service has been up and running since February, and city workers are among the service’s biggest fans. Emergency vehicles are now being outfitted with special devices so they can use the internet to access a wealth of information…