Kaazing, developed an enterprise-ready WebSocket gateway, called “Kaazing WebSocket Gateway,” which enables highly scalable, full-duplex real-time Web communication based on new HTML5 Web Sockets standard. Using Kaazing, you can seamlessly and reliably extend any TCP-based business messaging protocol to Web with ultra high performance and minimal latency. Kaazing WebSocket Gateway also provides emulation for browsers that don’t support HTML5 Web Sockets, so you can start coding against the standard today. “Our implementation was extremely simple; we basically capitalized on App Engine's out-of-the-box integration with Google Apps so it was just a matter of writing an automatic license key generator and using App Engine's built-in e-mail service. This license key generator application was then made available as an application on our Google Apps instance,” writes Peter Lubbers.
More info: Kaazing WebSocket Gateway