While it's not an app that you will be using every day or even every month, the new Air France application for Windows Phone is pretty slick. The latest update available for their official app has been optimized for Windows Phone 8.1. The Air France app lets you purchase tickets, check-in, change your reservations, view your flight status, and log in to your Flying Blue account. Want to see it in action? Check out our hands-on video with the Lumia 1520.