Apps that digitize the plethora of shopper reward cards have been around since the App Store launched, and Auntie TUAW recommended a couple back in June. But, what about the paper or cardboard slips handed out by the local mom-and-pop businesses? The beloved, and quite often stained, cards that offer a free cup of coffee after we buy seven? Stampt aims to digitize those.
With Stampt, if yo
