The future of banking at HP Innovation Day

This is an idea still waiting for its day to dawn. There are all kinds of e-books readers available, but somehow none have quite managed to capture the public's imagination. This is a classic design and shows the wonderful clarity that electronic books can give to text. The pages can be turned and thumbed over at will and every aspect of the e-book reader mimics the behaviour of a real book.

The problem is: you cannot easily stuff it in your pocket. For that we have to wait for the next breakthrough, explained one of HP's scientists. "The future is electronic paper," the researcher said. "We have it now but we have to get it in the right form and at the right cost."

The moral? Don't throw away the old paperbacks just yet.