Google Monday revved the iPhone version of Google Earth (free) to version 2.0. The major update to Google's venerable map app adds the ability to log in and see maps created on your desktop computer, explore the app in new languages, and improved icon selection and performance.
As a bonus, you can also view maps that others have created and shared:
Maybe you're on a trip and want to see where Tony Wheeler, the co-founder of Lonely Planet, most likes to travel. Or perhaps you're walking around looking for a restaurant and you want to see where world-famous chef Ferran Adrià likes to eat. All you have to do is click "Save to My Maps", open Earth on the iPhone, log in with the same account information, and voilà, you have your same collection of My Maps right in your pocket.