1. – You must not access the Map Maker Source Data through any technology or means other than those designated by Google.
2. – You must not copy, translate, modify, create a derivative work of, or publicly display any Map Maker Source Data or any part thereof for any commercial or for-profit purpose.
3. – You must not use the Map Maker Source Data to create a service that is similar to a service already provided by Google through its products or API.
Read more at: http://bit.ly/yLJnd0