I use My Work to look at all my task across all boards, If I have several tasks to work on it would help me to be able to see the priority of the task to decide what task to work on first. Right now, I have to read all tasks and open them to determine what I am going to work on.
For this, I would suggest using a Dashboard where you pull in all of your boards and use a Table Widget with a filter applied for status or date so you can see what is most urgent.
When you refer to priority, are you assigning status labels for this to the items or organizing by date?
We should have the ability to move/drag-n-drop task around on my work to create the priority for the day. seems like an easy feature to implement. we can already do this on the project boards