Dan Moren on Apple’s updated iOS app:

Using your iPhone 4 or iPhone 4S, you can scan the barcode on a product, which will provide you with information about it (specs, ratings, reviews, etc.), and then log in with your Apple ID and pay for it using the same credit card that’s linked to your iTunes account. After that, you can take your item and walk right out of the store. Receipts for items you’ve purchased via EasyPay are available under the app’s More tab, just in case the security guard isn’t convinced.

It’s a pretty clever solution, but I have to wonder the implications on how easy it is to walk out of the store — what if I want to buy more than one accessory, can I do that, and if so what if I need a bag? I’ll check this out over the weekend, but for now I think this can only help to alleviate some of the congestion at Apple stores.