Gaim is a free and open source messenger program, for almost all existing protocols. Gaim 2.0 Beta features a rewritten status system, smooth scrolling, support for advanced MSN Messenger features like nudges and Yahoo Doodle, improvements to file transfer under AIM and ICQ, support for Apple’s Bonjour, and even voice over IP capabilities. Downloads of Gaim 2.0 are available for Windows and UNIX systems.