Kinect-enabled shopping cart is smarter than the shopper (video)

Microsoft has just demoed a Kinect-enabled prototype shopping cart designed to take the guesswork out of your trip to the grocery store. All of the guesswork. In fact, all you are required to do is upload a shopping list and place items in the cart.
The cart utilizes the Kinect and other sensors to read what you are placing in the cart and check whether the item matches your pre-planned menu and any dietary constrains. If you've blindly placed an item in the cart that doesn't match with your downloaded list, forget about it. The Kinect Cart will tell gently — and slightly disapprovingly — verbally remind you of your mistake.