Passbook is one of the more exciting updates in iOS 6 to me. But so far, it is half baked. Although Starbucks now works great, and I have coupons for Target, but there is no intuitive method of adding loyalty cards (Kroger Plus for example). I know of the websites like passsource and passdock, but there should be an easier way. Also, it isn't intuitive that you have to download an app, and then go into the app's settings to flip the switch for Passbook. Especially if you can later delete the app but keep the item in Passbook. I wonder how long it will take for Apple to iron the kinks out of this. Thoughts?