Apple's Passbook has had a rocky road. When it was first introduced in iOS 6, it seemed like an excellent idea. You could store all of your loyalty cards, tickets, and other mobile payment items all in one place. But in practice, Passbook hasn't been all that helpful. Not many retailers' loyalty programs are included in the app, and getting information in there is harder than it has to be most of the time.
But Apple isn't giving up, and neither are retailers. GigaOm has a few good examples of how certain retailers are using the app. Gift cards are now a big dea
