We would like to create a site wide chat system as a Wordpress plugin that any visitor to that site can engage in a live chat (all in the same room so to speak). they would login via a open id (twitter/facebook/google/yahoo etc) we would host the database on our end so that each webmaster can simply install a snippet that populates the chat window with users visiting that site and logged in globally. So if a user switches to site a (code installed) to site b (code installed) the chat “bar” would populate with chat/users from the new site. We would like to to combine the “bar” and “advsertising” features of Meebo (meebo.com) and the user management/spam reporting features of Babblebar (babblebar.com)