The CEO of AT&T has admitted that the US carrier’s mobile payment efforts have failed in light of the closure of Softcard, the joint venture between it, T-Mobile USA and Verizon. “In the end, we thought we’re probably better off not investing more money in this space,” Ralph De La Vega told Forbes. “It seems like a more natural fit for the OS manufacturer doing those kinds of things. We decided to focus on another part of the business and not continue on the mobile payments area.”