OboPay –- (via Park Paradigm, who invested in it):
With OboPay you can instantly pay back a friend, split a dinner bill, get money from your parents, get quick cash, pay up or collect on a friendly wager, track purchases, check your balance, and much, much more. And, you can do it all from your phone– anywhere, anytime with anyone.
Would it work for real-money prediction markets (InTrade, BetFair, etc.)?