IRC client for OS X written on RubyCocoa.
Logitech Vid is the fast, free and easy way to make a video call.
This is a software for iChat that enables you to find a specific conversation.
With myPhoneDesktop, you can send content quickly from your desktop to your iPhone.
qutIM is free and open-source multiprotocol (ICQ, Jabber, Mail.Ru, IRC).
