> Future versions could also be more malicious, such as modifying the price or even availability of the item on a competitor's website if possible. What about

> Future versions could also be more malicious, such as modifying the price or even availability of the item on a competitor's website if possible. What about the corollary to this - marking down a price in store for a specific shopper. This is something I've read about in regards to in-store tracking. A system could detect when you're likely to purchase something given some sort of incentive, and provide an on-demand coupon to your smart device.