Images: Messenger 6.0 for the Mac

Microsoft's Messenger for Mac 6.0, due later this year, will provide separate windows to help users keep business and personal contacts separate.

Users of the Microsoft IM application will be able to trade messages with friends on Yahoo Messenger.

The "What I'm Listening to Now" feature will let people see what a Messenger 6.0 user is listening to on Apple Computer's iTunes software.

In the personal user format, people will be able to create custom emoticons and a personal display message.