Especially since pusher is a third party service and it's probably using (or is able to use) websockets as a transport for that push anyway? Pusher.com's pag

Especially since pusher is a third party service and it's probably using (or is able to use) websockets as a transport for that push anyway? Pusher.com's page title is "HTML5 WebSocket Powered Realtime Messaging Service", no less.