"We have previously discussed Empathy, an open source instant
messaging client and toolkit that is part of the Telepathy project.
Empathy has officially been proposed for inclusion in GNOME 2.22,
making Telepathy and the Mission Control connection management
framework potential external dependencies.
"Empathy is rapidly becoming an important part of the GNOME
software ecosystem and is already packaged in several mainstream
distributions, including the upcoming Ubuntu 7.10 release..."