Google Earth now comes in a Mac-OS compatible version! I'm amazed that I discovered this big news only because I (again) checked the program's specs. (I figured that Google would Apple-ize it eventually.) I think that this story should have gotten a lot more play.
Speaking of "play," please excuse me. As an ardent cartophile, I've long been looking forward to winning access to Google Earth. I need only read the license agreement, first . . . .