Welcome to Indoor Google Maps

Indoor floor plans and maps are now available for many airports and shopping malls for users of Google Maps 6.0 for Android.

Where available detailed floor plans automatically appear when you open Google Maps in your Android phone. As usual the 'blue dot' will appear on the floor plan to show your current location within several meters.

When you move floors in a building the floor plan will even automatically update to display which floor you’re on.

Initially floor plans are available for a number of malls, airports and transit stations in the U.S. and Japan. You can see a detailed list of participating locations here.

Google have also created a Floor Plans website where business owners can upload their floor plans and make them available on Google Maps.

Via: Google LatLong