I have a need for a highly responsive web page that must at least appear to be "pushed" information from the server as it happens, much like you'd see with an HTTP protocol based chat window. The client will utilize JavaScript, and will use JQuery and its UI plugins, and will use its AJAX support to call the requests that will only return when there is data to be "pushed". I know HTML 5 includes support for WebSockets, but I feel it is too soon to rely on them, as the spec is not yet finished and ......