This video demonstrates the support for remote event receivers in SharePoint 2013 using Visual Studio 2012. In previous versions of SharePoint you could create event receivers on the SharePoint server. Now, you can deploy event receivers remotely in a WCF Service. This allows you to respond to SharePoint 2013 events from a WCF Service and implement business logic or trigger business processes outside of SharePoint. This opens up a lot of possibilities that were not available previously. This will complement the functionality of Business Connectivity Services and provide another way to interact with resources outside of the SharePoint process.