Three months after Bing launched its version, Google has decided it is a good idea to give consumers on-the-go access to detailed maps of airports.
Available only on Google Maps on Android-operated mobile devices, the idea is to give users better understanding of what is actually inside an airport rather than just seeing the block of a terminal building on its existing maps.
Launched for a string of US and Japanese airports (and shopping zones) initially, users can find their check-in areas, boarding gates, shops and other amenities.
It is, essentially, what startups such as Point Inside have been working on for a few years.
Missing in the Google version (but not in Bing's) at the moment is any link to live schedules for flights, clearly the most handy piece of information anybody visiting an airport inevitably needs.
But it doesn't take too much imagination to work out where this might head in the future.
Throw in flight search and schedules, maybe some airport hotel search and car hire (as Google has said is likely to come in its assault on the travel sectora, alongside things to do in a location, perhaps), and Google has quite an interesting travel app on its hands.
Well, fancy that.