I won’t write anything here about all the Apple announcements from Macworld’s opening, because you can read about it all over the place and I would just be duplicating old news 😉
Google Earth runs on Mac OS 10.4 and up and is coming out of beta status as of today. All of you who illegally took a sneak peek at it via the leaked beta should update as well, because there are a few features which weren’t quite ready in the leaked version.
edit: looks like it’s PowerPC only! Not very wise, after the first Intel Macs got announced today 😉