The tooltip that displays during mouseover in the bottom right corner should move itself to somewhere else when the thing you are mousing over is IN the bottom right corner. I do some of my beta testing on lower end laptop so I play at low resolution and often times the thing I'm trying to select is covered over by the tooltip which makes me stop what I was doing to move the screen so that the object isn't in the same area that the tooltip displays.
It's a minor thing, but something that I've noticed and been impressed with whenever I've seen it in other games/applications.
