Here's an Autodesk-authored short video of the Dynamo Player in action:
Revit 2017.1 also includes the latest release of Dynamo, the very recently released Dynamo version 1.2.
Lastly, a couple Autodesk-authored former add-ins were natively rolled into the base product, Insight 360 and the Space Naming Tool (for MEP). We've updated our Roundup of Autodesk Product Enhancements for Revit 2017 accordingly.
For more information on the Revit 2017.1 release, see the Inside the Factory blog. There's also a nifty video playlist of the new features on YouTube.
Updated on October 13, 2016 to include the version of Dynamo installed with Revit 2017.1, and to include the link to the YouTube playlist of the new features.