Oh I didn't even know that was a feature. That actually sounds pretty cool to me. I know it's not a strong user behavior at the moment, but plenty of people price shop in brick and mortar stores (I certianly do it every time I'm at Best Buy, but it's just to get Best Buy to price match with Amazon), but maybe if (a) the phone comes down in price and (b) they offer some kind of brownie on top of the feature (like a N% discount over the brick and mortar store's matched price with Amazon, if you physically scan an item and the phone detects via GPS that you're at a storefront?), maybe it can slowly tide people over and change user behavior.