I developed a script to show the agents most recent and upcoming callbacks. You can adjust how far back and how far forward you want the callbacks to be displayed, I have it set to display callbacks 1 hour before and 1 hour after the current time.
It's pretty cool my agents love it. I'm not sure if I want to put a pricetag on it yet or just give it out for free, would anyone else like to have it?
Here is what it looks like:
http://i40.tinypic.com/ou4l7b.jpg
I'm still working on some small additions...