Mobile carriers are becoming more heavily involved in the payments world. Many are spearheading tests and full deployments of mobile wallets throughout the world, and some are launching prepaid cards as well. (Image: ShutterStock)
T-Mobile's "Mobile Money" initiative features a prepaid card with a heavy focus on mobile account access. The wireless carrier is treating its U.S. stores as a stand-in for a bank's branch network, providing customers with a place to add funds to their accounts for free.