I want to see all the online collaborators on projects in the dashboard. Particularly, which projects the collaborators are working in.

I envision this would appear as an overlay when you hover over a project that shows their little round icons or will display "# of users currently working in this project" if the number of collaborators is large.

It would be nice to see this information from the workspace dashboard, to prevent project leapfrog and see which projects are being worked on.