WiFi roaming on a grand scale is the order of the day as a rising percentage of wireless data travels over the unlicensed-band technology, and as a wide range of service providers put WiFi at the heart of their networks. Just weeks after the Wireless Broadband Alliance (WBA) – the grandfather of WiFi roaming – announced agreements to allow movement between 23 operators of city networks, CableLabs, the cable industry R&D organization, pledged to launch a roaming hub for as many as nine US cable operators, by early 2017. That could further accelerate the creation of a nationwide network of cableco-deployed hotspots to supplement the CableWiFi Alliance’s huge roll-out. A nationwide roaming agreement of that kind, which could provide seamless…