[...] Today, we added a "Businesses" layer to Google Earth on iPhone, as well as to the "Geographic Web" folder in the desktop Google Earth version. To make them easily discoverable, you'll see them by default when you start the application next time. You'll find businesses like restaurants, bars, banks, gas stations, and grocery stores all just a touch away. By clicking on the icons, you'll get additional information like the telephone number, reviews, hours, and much more. And don't forget, as you zoom in further, more businesses become visible.
Have fun exploring your current location - and let this virtual world help you discover new things in the real world.
Source: Google LatLong Blog
Read more: http://google-latlong.blogspot.com/2009/05/businesses-layer-for-google-earth-on.html