My two OpenSim avatars using “MyCyberTwin” chatting away together. Part of the creation of a digital artifact for the 2011/12 University of Edinburgh MSc in e-Learning course on Digital Cultures:
http://atate.org/ai/ai/res/2011-10-09-chat-log-ai-and-be.txt
At least they don’t bicker like some recent chatbot to chatbot chat experiments: http://www.youtube.com/watch?v=WnzlbyTZsQY