Looking at something like http://dash.social-biblio.ca/torontolibrary on a sub 1080p monitor is less than optimal.
The thinking was that displaying exactly the same data on a TV, desktop, and mobile device isn't ideal. The dashboard is designed specifically for the display. If a mobile version is needed, then the relevant widgets can easily be put into a new, mobile-optimized dashboard.
The same could be achieved with carefully designed media queries, but I feel that separate dashboards do the job better.