Licq will hit the stabile repository soon.
With aMSN (MSN Live Messenger)
Gyache Improved (Yahoo Messenger)
And soon Licq (ICQ) you cover the most popular chat tools around the world.
Most user have Pardus 2011.1 at home so thoose things are important if you use the PC as a "social" instrument.
You got some universal ones like Pidgin to of course. But they often lack some important features. Webcam compatible, photosharing etc..
So good work Pardus developers.