What is in this release?
This release includes a huge new feature my education customers have been asking for. The ability to share a Mac desktop/PowerPoint/other desktop content with other Lync users including PC users, etc. I can think of the troubleshooting helpdesk scenarios as well! There are also some important bug fixes for Communicator.
PC users can now see Mac desktops for content consumption!
How do users get it?
13.1 is currently available to you through MAU through Communicator's first updater. Users will need to install MC13.0 and then apply this update.
Read more on the Communicator 2011 13.1 update here.
Any news on when / if Office Communicator 2011 for Mac will work with Microsoft BPOS (Online Exchange Service?)
I haven't seen anything yet for support for 13.1 with OC Online. My guess may be when Office 365 launches.