I've released a new version of cf-websocket-gateway which allows for targeted messaging. In the first release, messages were sent to all connected WebSocket clients. With this release you can now send messages to a single client or sets of clients. For more information see the github wiki.
I've also upload three sample applications that show how to use the WebSocket gateway with Flash fallback for browsers that do not support WebSockets. The examples are available in the v.1.1 download.