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Changing prices of products on a continuous basis is a necessity in a retail environment, and is particularly time consuming in a grocery environment with thousands of different items stocked on the shelves, and thousands of potential price savings every week. Canadian retailers also have a code of practice where retailers pay reparation to consumers in the case of mislabeled items, so retailers have a tremendous incentive to ensure that prices are up to date and synchronized with the in store database.

It's already revolutionized the digital book, but what else will this modern marvel bring us?

We were supposed to get our "paperless office" over a decade ago. The prolifieration of Internet access and the birth of new file formats for distributing documents over the Web promised to finally banish paper from the desk once and for all. But look around a modern-day office and you'll still find desks plastered in pulp. The problem: computer monitors suck for reading. They flicker and flash, look blurry compared to paper, and suck down loads of power just to display the same simple text.

While we're still fawning over tiny e-paper displays in e-book readers, the Japanese government is installing panels in Tokyo to aide evacuation in disaster situations—a very good idea, as it turns out.