Mobile release limited to latest version of Android platform.
Google Earth is finally coming to the Android. If you have a Nexus One. Google Earth for Android is only compatible with Android 2.1 or higher. As additional devices with the newer version come out, Google Earth will be available for them as well.
The app features 3D imagery, photos, and local biz listings. This particular mobile version of Google Earth, however, includes the popular roads layer as seen in the desktop version.
If you have a Nexus One and would like to download Google Earth, search for it in the Android Market.
Image via Google LatLong blog