Passbook is what I've been most eager to try iOS 6. My husband teases me about poking through a wallet full of cards for different locations, and one of my favorite apps is the Starbucks app, which allows me to use my iPhone to pay for my drinks. Passbook was billed as the iPhone's digital wallet, which can be used to store boarding passes, movie tickets, coupons, store loyalty cards, etc. all into a single place.
Nice idea. Too bad the execution's not going very well.
The first issue for a lot of people is that upon launching the app, there is an error