A Jabber/Gtalk client with support for Google Talk (GMail) audio & video calls.
Beautiful, native instant messaging client for OS X that supports Hangouts/Gtalk and XMPP.
Chat program that allows you to connect to different networks like MSN, Gtalk, Facebook chat, Jabber and others.
The ippi Messenger software allows you to call with your ippi account
Instant messenger program that can connect to MSN, Yahoo!