FREAKIN' A, B, AND C!
I remember in Preview 1.7, I made several requests to show the Z-coordinate (for height) in the title bar. It didn't happen then, but it sure happened now in 1.8—my wish is fulfilled, w00t! The Z-coord also appears in the Map screen, making it a little wider.
I mean, this is a 3D world. ^_^