Tropos and Boingo sign roaming deal that will allow metro-networks to choose to offer roaming to Boingo customers: There's no mention in the press release about existing metropolitan network operators choosing to add Boingo roaming, but it does mention a half-square-mile prefab package that Tropos offers that will include Boingo roaming.
Update: Boingo's PR firm emailed that The Verge in New Orleans and the Cerritos, Calif., networks that use Tropos equipment offer this Boingo roaming option.