A very nice MSN compatible messenger application, aMSN Messenger is a multiplatform MSN messenger clone. Works pretty much like its Windows based counterpart.

• Display pictures
• Custom emoticons
• Multi-language support (around 40 languages currently supported)
• Webcam support
• Sign in to more than one account at once
• Full-speed File transfers
• Group support
• Normal, and animated emoticons with sounds
• Chat logs
• Timestamping
• Event alarms
• Conferencing support
• Tabbed chat windows

aMSN is a clone of the original MSN Messenger, with the same look and feel although aMSN does have some additional features.