iOS 6 passbook for airline tickets

Imagine you're running late to the airport, you have your paper ticket with your gate number printed. You arrive at the gate, you realise the gate number changed... This wouldn't happen with passbook.

Passbook just works...

Instead, you'll arrive at the airport with your iOS 6 iPhone with Apple's Passbook app. You receive a notification and swipe open your airline ticket in your 'Passbook' app. When the gate changes, your passbook app dynamically updates the gate number on your pass, so even when you're late - Passbook keeps it simple.