IM Chat Interop Just the Beginning for Microsoft, Yahoo

IM Chat Interop Just the Beginning for Microsoft, Yahoo: "If Microsoft and Yahoo! do provide a way for users to connect using VoIP, the 350 million people who use both services will be able to make PC-to-PC phone calls for free, bypassing emerging dedicated VoIP services such as Vonage and Skype. Internet-based phone calling will likely replace the traditional phone infrastructure at some point, analysts believe, due to its low cost and the resiliency of the Internet."