I am wondering if there is an X-Fire type client out there that runs native on OSX but is also cross platform. Basically I want my friend to be able to see what games I am playing in OS X (Enemy Territory: Quake Wars, Battlefield 2 (via Cider Home Port), WoW, etc.) and be able to message me in game or join me if possible. Does a client like this exist? Is Gamespy Cross platform? Any help would be appreciated!