Google Earth - Home
I've installed Google Earth. This is what giant CPUs, fast GPUs, big "pipes", and biggish drives were made for. Google bought Keyhole a while back and they've released a new version that's free and works on many more Wintel machines. It runs reasonably well on my 2-3 yo XP box; I think the primary source of delays are network traffic. I have a lot of free space on my cache drive, so I'll give it a 1GB cache to help with future performance.
A Mac version has been promised, Google is good at delivering on promises.
Very fascinating. Even my wife is truly impressed. I haven't yet tried the feature of setting out a route, then watching Google Earth traverse the path.
Unfortunately they've closed the beta to newcomers -- so check back in about two weeks.