The system works out well for retailers, which have taken a one-two punch from both the popularity of online shopping and the way smart phones enable consumers to comparison shop while in the store, looking at listings from competitors for lower prices before deciding to buy. In the sixth annual survey from National Retail Federation Foundation and American Express Customers' Choice survey, conducted by BIGresearch, Zappos.com and Amazon.com took the top two spots.
Read more: http://www.foxbusiness.com/personal-finance/2011/05/25/mobile-checkout-devices-save-time-encourage-spending/#ixzz1NTlLUiZH
I think this got flagged earlier but it's so potentially disruptive I wanted to tag it again. This kind of everyday "micro-financing" could make things like non contract mobile phones way more accessible to many more people.