Through Checkout, an application for the Apple iPhone, people can check prices immediately (online or in the neighborhood), read reviews or visit an online store to order there. This is done by entering a product's barcode.
Future Vision by Erwin Van Lun on this article
This will change shopping behavior quite noticeably. If you know what you want, you just want the cheapest price. If you don’t know what you want, then maybe you want advice on or offline. You’ll pay for that. And maybe you’d like to try the product first, or hold it (like in a physical store); you’ll pay for that too. I’m talking about a shopping mall with a huge assortment that stocks in any case the products you’re considering buying, maybe brought forward especially for you. That’s a totally different concept of ‘stores’ where the retailer determines what’s on offer like we have currently.