Google Maps will sync across devices. Say you are making lunch plans in the morning and you search for a restaurant on your desktop computer. Later, as you are walking to the restaurant, you pull out your phone to look up its location on Google Maps. If you were logged in to Google on your desktop computer earlier, as soon as you start to type in the Google Maps search box on your phone, it will suggest the restaurant and other locations you have previously searched for on your computer or phone.