We once dreamed of free municipal WiFi. Now, we'll settle for cheap WiMax, the new standard that will offer WiFi-like speeds but with about ten times the range, which cuts down on the number of towers needed in a coverage area. Tech website Ars Technica was on the Chicago River earlier this week for Sprint's demonstration of its new XOHM WiMax service. The testers were given laptops with XOHM plug-in cards and Motorola cell phones hooked up to the network. more ›