Yesterday the Operations Manager team released an update to the wildly popular Visio add-in that allows you to visualize your monitoring data from Operation Manager in your Visio diagrams using the new Visio Services functionality available in SharePoint 2010.

Click here to read the details about this update and to download this new version

http://blogs.technet.com/b/momteam/archive/2012/04/02/visio-and-sharepoint-extensions-for-system-center-2012-released.aspx