A deal between Pronto Networks and Sun Microsystems pushes the iForce Wi-Fi Appliance out to hotspot networks for deployment of 25, 50, or 100 hotspots: The system provisions, authenticates, manages access, creates walled gardens (areas of private in-system content available without payment and authentication), and roaming settlement, among other features. Above 100 hotspots in a network, and the companies steer you towards Pronto's higher-end software installed on a Sun server.
A related announcement from Pronto covers their partnership with Syniverse to allow Pronto management system users to use Syniverse as a clearinghouse for bi-lateral roaming with fee settlement.