Online Payments and Their Effect on Mobile

If consumers get used to buying music on iTunes or apps on Google Play with one click, they'll expect the same experience in other mobile transactions. If their phones allow them with a single touch to buy a sandwich at Subway, how much patience will they have for m-commerce sites that take too long to load or don't correctly adjust to the smaller mobile screen size? If they can buy a washing machine at Sears by scanning a barcode with their phone, how will they react in the frenzy of the holiday rush when an online retailer requires them to fill out multiple screens of personal, shipping and payment information on the fly?