By the 2012 Olympics, Boris Johnson pledges full outdoor Wi-Fi network: The Wifi London project, about which I have heard nothing before today, will result in "every lamppost and every bus stop" having Wi-Fi nearby. Twenty-two London boroughs have signed on to the plan that would rely on existing poles to provide power and lighting.
Excuse my knowing laugh. From the dozens upon dozens of municipal networks that I followed over years, the biggest problem was getting power to poles. In some cities, like St. Louis, this proved impossible because lights were controlled for time of day through large master switches; there was no 24-hour power at the pole. In other cities, poles had ancient wiring, or were incapable of having additional juice pulled. In a very few cases, poles were available in most places with enough power. Very very few cases.