What is Passbook?
Passbook is Apple's new feature for iPhone and iPod touch on iOS 6. Passbook lets you store your digital tickets, boarding passes, and coupons.
Where to find more apps for Passbook?
Every day more and more brands create passes for Passbook.
Some of the first brands to offer passes are:Starbucks
, United Airlines
You can find more recommended Passbook Apps here