AIR is for the desktop. Why would you expect Adobe to use it to deploy their web applications? It is no where near powerful enough to take on the tasks of the Creative Suite either.
"Adobe AIR lets developers use their existing web development skills in HTML, AJAX, Flash and Flex to build and deploy rich Internet applications to the desktop."
"Adobe AIR lets developers use their existing web development skills in HTML, AJAX, Flash and Flex to build and deploy rich Internet applications to the desktop."
http://labs.adobe.com/technologies/air/