At this point we've seen so many variations on the "smart shopping cart" concept bubble up and fail we're pretty jaded, but the latest version, from Electronic Data Systems, seems like it almost maybe has a chance. Unlike previous concepts, the EDS model is built around the humble bar code: swiping items as you place them in your cart lets you keep a running tally of nutritional information, ethical sourcing, and environmental impact, letting you modify your purchasing decisions simply and quickly. Keeping it simple might be the winning strategy here, but we're not going to be convinced until the carts at our local can do more than just veer straight left.

[Via Vegetarian Organic Blog]