Check out this video which shows how people with tablets could purchase magazines from a table (store) which could be placed almost anywhere. The video was shot at the SXW trade show.
While people will come up with barriers to why this will not work, imagine this in an airport where there are plenty of gadget laden road warriors looking for something to read on a flight.
The demonstration is amazing. It shows one way of purchasing product for the tablet-like devices. There are others and will be plenty more., Most do not involve a bricks and mortar business.
Source: eMedia Vitals.