Apple never sleeps. They are always filing interesting patents. Like this patent for iTravel. The idea is that it turns your iPhone into a device that can handle all your travel needs. It would allow you to search for and book flights right from your iPhone.
You can then share that information with your iPhone contacts if you like, or set it so that you receive travel updates via SMS or push messages. The app could use RFID, so that your boarding pass is stored on your iPhone and can be scanned using QR codes or an RFID chip.