Instantbird – Muli-Protocol Instant Message Client
http://www.instantbird.com/

Instantbird is a multi-protocol Instant Messaging client. Using it, you can connect to all your different IM accounts. It uses the Mozilla rendering engine to display IMs, and the Pidgin libpurple to connect to the different networks. Instantbird is a free and open source software. So you are free to use, distribute and modify it. The project is just on its first release with many features are not implemented yet. This has been added to the tools section of Research Resources Subject Tracer™ Information Blog.