GateGuru has made its way onto Android, bringing with it a sort of mashup of Foursquare and travel apps such as Tripit and FlightTrack.
When you first launch GateGuru, you'll get a long list of airports, with their three-letter abbreviation. You can flick through the list, or type to drill down through it. The list is long, but not complete. Your airport might not be listed. The GateGuru folks say they're adding airports all the time.
Airports that are on the list have pretty comprehensive guides, however. For example: Atlanta's Hartsfield-Jackson International Airport has five concourses. And GateGuru's got a map of the entire complex, checkpoint wait times, and breakdowns of the shops, restaurants and services that are available there -- plus photos.
For the social aspect, you can check in at various airport locations, leave tips and reviews, and ear points for doing so.
GateGuru also serves as a decent travel planner, too. It can tie into your Tripit account and import itineraries. It's not quite as in-depth as we'd like to see (in-flight information and other flight info would be a worthwhile addition).
So is it the perfect travel app? Not just yet. But GateGuru is an interesting mix between being an all business travel app and more of a social check-in app. And that it's free makes it painless to try out. Check out our hands-on video and find download links after the break.