Your mobile phone as a personal shopping assistant? That is what a supermarket in Germany is doing right now. While we are all familiar with the self serve checkout aisles, this supermarket makes those automated aisles feel like something out of the 1950's.
By scanning all the product bar codes as you work your way through the store, by the end of your trip you can skip the waiting and unloading of your shopping cart. One button press on your mobile phone results in a single bar code that includes all your purchases. Pop that code under the scanner at the checkout and pay by cash, credit or even fingerprint.
This is something you have to see. Check out the video and Roger the customer service robot.