Apple’s new EasyPay self-checkout feature lets you pay for your own items at the Apple store, but it doesn’t yet have all the kinks worked out–at least in my experience.
The EasyPay feature requires you to download the latest 2.0 version of the Apple Store app. To buy an item, you’re supposed to scan its barcode with your iPhone’s camera, at which point it’s added to your shopping cart. You then pay for your goods using the credit card associated with your Apple ID and iTunes account.
Beyond letting you pay for your own items, the app allows you to order a product online and then pick it up at your nearby store.