Google recently partnered with some of the largest retailers, airports and transit stations in the U.S. and Japan to provide you with Google Indoor Maps. Now when you’re lost inside an airport, shopping mall or other confusing location, you’ll be able to use Google Maps to figure out where to go.
Google Maps “My Location” feature already shows your location as a blue dot so you can see yourself on the Map from your mobile smart phone to avoid walking or driving in the wrong direction on city streets. It also shows familiar landmarks and buildings nearby to give you a better understanding of where you are. However, Google Maps used to be able to get you to the right building, but once you went inside, you were on your own to find the right gate at the airport or the correct office in an unfamiliar building, until now.
Check out this video for a better understanding about how Google Indoor Maps works and read the official Google Blog for more information.
http://youtu.be/Gy-DI_bWElg