Here is an idea!
Why don't we use Smart Mobile Studio to make instant chat system of our own. Its capability to make Html5 based applications could come in werry handy. We can use it to make server core application, web acces aplication wich can then be integrated into PGD site itself and even standalone clients.
Unfortunatly I have werry litle expirience on this field therefore I can't offer much asistance but I'm sure there are PGD members wich have expirience in making multiplayer games and network based applications. They can come werry handy in development of our own chat system. And becouse of Smart Mobile Studio they won't have to learn new programing language to do this.