Messenger for Mac has been released on Tuesday, April 29th.  Messenger for Mac includes new features for both the corporate service (works with Office Communications Server) and personal services (works with the Windows Live service).

Price: Free
Delivery Method: Download from: http://www.microsoft.com/mac/
Primary Audience: Enterprise

The key features for both Corporate and Personal are:
Corporate Features:
•    For corporate Mac users, increased support for Office Communications Server 2007 make it easy to search a corporate address book from within Messenger and quickly find internal contacts.
•    Corporate Mac users with Office Communications Server and Messenger for Mac 7 installed on their corporate network can participate in face-to-face meetings with co-workers.
•    New features and “presence” enhancements in Messenger for Mac 7 include the ability to add a personal message to corporate Mac users contact information.
•    With an improved connection to an organization’s Global Address List, users can search the corporate address book from Messenger for Mac 7 to quickly find internal contacts.
•    Take advantage Mac OS X Bonjour instant networking technology to let you see which contacts are available to connect on your local network.

Personal Features:  
•    Conveniently and instantly share files and gather feedback.
•    Messenger for Mac 7 takes advantage Mac OS X Bonjour instant networking technology to let users see any available contacts located on their local network.
•    Find a contact, just search, click and connect using the new contact search tool.  
•    Keep track contacts by assigning nicknames even as friend/family members are changing their screen names.

Another feature is Bonjour support in Messenger, available in both personal and corporate services. Messenger for Mac 7 includes the ability to detect other Messenger for Mac users that are nearby, on the same local network, through the Mac OS X Bonjour technology. If you would like to check who else on your network is around, Bonjour has the ability to show you.