Comment on this news article
Automatically set in-conference status in Leopard’s iChat - Macworld
http://news.google.com/news/url?sa=T&ct=us/0-0&fd=R&url=http://www.macworld.com/article/139260/2009/03/ichatconf.html&cid=1311944134&ei=wymySeCKCouwMsHosOID&usg=AFQjCNHkOKEXtqqFv8Cn0-B_ItWLIf3S0A