The Apple Store app for iPhone has been updated and supposedly allows users to buy gift cards and have them emailed to the recipients. We must be blind and clueless, because no one at iMore can actually figure out how to do this. The update notes also claim that these gift cards can be used with Passbook, but the only type of gift cards we can find are for iTunes, the App Store, and the iBookstore; it doesn't make sense to use Passbook for any of these stores. Apple Store gift cards, however, would be awesome with Passbook -- too bad they are nowhere to be found.