why would i merchants give such large discounts? would they be open to individual employees choice? = abuse vector would customers give over this much info for uncertain rewards. neat idea of giving businesses the ability to see what customers are saying about them

Nice way to integrate a loyalty across a bunch of merchants.

I always love your creative ways to mix social networking into scenarios most people don't think about it.

Like the combination of fraud detection, real-time rewards and social.

Are retailers open to adding a discount decision process into the checkout flow? How do you get broad adoption to make it more useful?

How many people tweet about buying apples? Is this a good thing?