After waiting for almost 2 years, Gmail’s plug-in for voice and video chat is now available for Linux.

Gmail Plugin For Voice And Video Chat In LInux
(image: Google Operating System)
You can head over to gmail.com/videochat to download the Gmail Voice and Video chat plugin for your Linux distro and get started instantly.
For now Gmail Voice and Video chat for Linux supports only Ubuntu and other Debian based distributions and RPM package support is expected to come soon.
(via Google Talkabout)