The P2P Payment Challenge

This photo of the menu at Silver Spoon, the Thai restaurant in Chicago that my wife and I ate at this evening, tells a good bit of the person-to-person (P2P) mobile payment story:

Limit 2 credit cards per check please.

As survey after survey has shown over the past two years, debit cards are the fastest growing means of payments. As fewer people carry much cash, restaurants are faced with multiple debit and credit cards to settle checks.

Sliver Spoon apparently has had enough. Cashless patrons can always handle it the way writer-researcher James Richter and his buddies do: play credit-card roulette.

Clearly, person-to-person (P2P) payments are a problem waiting for an elegant solution.