Well, with Beta 4 of Google Earth, you can now run it on Linux. I’ve just tested it on my Kubuntu box at work (ATI graphics card, ATI driver), and it worked brilliantly. Went hunting for the place I grew up, and managed to find a decent res image at 13°12′11.60″N by 59°33′59.28″W. Where I am now is 4,128 miles from there, where I went to college is about 2,100 miles from there, and 3,400 miles from here.
I just wish they’d update the satellite imagery for where I went to college – it’s just a pinkish blob 🙁