I've got an interesting scenario regarding an events list, and I think
I could use some adivce.

Our database department has their own top-level site. They have an
events list which shows who is on call at any given time, along with a
calendar view. Pretty standard.

Each one of our IT departments wants to have the database on-call
calendar on their site as well. What is the best way to go about this?
Is their something like the dataview web part that would handle this,
or should I write my own? Any feedback or guidance would be most
appreciated.