Tripit.com imports and interprets your itineraries from airlines, hotel chains, ticket outlets, and other travel companies. When you receive an itinerary from one of these providers, you forward it to a special Tripit email address to have it translated into a trip plan automatically (the site supports hundreds of travel providers, and the translation from email into structured itinerary is really quite amazing). You can share your travel plans with friends or colleagues via LinkedIn, and see when your fellow travelers are heading to a city near you or when their plans align with yours.
That collection of trip plans is what you view with the Tripit.com app. The app is linked to your Tripit.com account, and displays a day by day list of flights, car rentals, and other events that make up your trips. Each event can be opened in further detail to show information such as arrival and departure times, confirmation numbers, and more. Links for airport codes bring up Google Maps of the airport vicinity, and other links can check your flight status with a touch.
Since you can always access the mobile version of the Tripit site from a connected iPhone or iPod touch, the big advantage of the native application is that the travel data is cached locally on the phone for offline review (mid-flight, for example). More full-featured apps like the $9.99US TravelTracker or FlightTrack Pro can also store and display your Tripit itineraries via the service's API, and Tripit's developers tell us that they intend to continue supporting third-party application access.
To use the app on your iPhone or iPod touch, all you need to do is sign up for a free Tripit.com account or forward your first itinerary to firstname.lastname@example.org. Take a look at the gallery below for details of the Tripit app at work.