The ability to start a conversation around a specific SharePoint list item.
Similarly to how you can discuss VSTS items.
E.g A user submits a request to a SharePoint list. I can dd that list item and then discuss that with other team members.
We are happy to share that the Lists App has been released! To learn more about Lists in Teams, please visit https://support.microsoft.com/en-us/office/get-started-with-lists-in-teams-c971e46b-b36c-491b-9c35-efeddd0297db?ui=en-us&rs=en-us&ad=us.