Pidgin is a multi-platform instant messaging client. Pidgin supports various protocols used by different IM clients. So if you want to log into yahoo messenger, gtalk and MSN messenger at the same time, pidgin allows you to do this in a single window. Also you can chat with all your friends, using different IM clients, at the same time using a tabbed window interface. Guess what ‘best things in the world are free.’ Yes it’s free to download like most other IM clients but provides a good multi-platform support.
What are you waiting for? Go download it from http://www.pidgin.im/download/