I would love to see, as I'm sure others would, a "Protected View" option for dashboards.
This is important for not only preventing others from modifying a dashboard but in particular for better usability. When using dashboards on a touch screen device, the narrow margins between widgets and the outer perimeter of the dashboard viewport, combined with the necessity of having to touch the screen to scroll, make it
easy to inadvertently move or resize a widget when attempting to scroll.