Please provide the Live Chat module (at least for Cloud clients) by reusing your continual bi-directional communication using NodeJS used in Live Topics, Live Notifications, Who is Typing, Who else is Here?, etc.
The AJAX Chat app options are not scaling because they open a new connection for each user, process and continually poll the service and crashing the site frequently making it not look like cloud hosting.
Please confirm if this is added to your Roadmap.