Letting System Center Operations Manager 2013 and Team Foundation Server 2013 Preview talk together

Despite TFS 2013 is still a Preview, it is fully compatible with the other Microsoft products.
For enabling the DevOps story, you need to follow the TechNet procedure as usual, but you need:

• to install the TFS 2012 Object Model
• restart the SCOM HealthService via PowerShell (restart-service HealthService)
• after you successfully connect to the server with the wizard, you should get a TF223006 error regarding the command-line tools. Don’t worry. Save the configuration, and manually add the OperationalIssue_11 Work Item Type from the Operations Manager installation media.

and it works!