About their iPhone app:
Cupcakes-A-Go-Go and SnowShoe, two Madison-based small businesses, bring you App-A-Go-Go! This app replaces the paper punch-cards you've seen before-- the ones that are easy to lose, hard to keep in good shape, and fill up your wallet. Just pull out your phone at checkout, the cashier will give you a punch, and you're on your way to free coffee and cupcakes! Be sure to share about your punches with friends as you go along, to earn even more!