Cara_Latham writes "Mobile wallets are all the rage. But legitimate questions remain as to whether they will ever truly replace their leathery counterparts. Mobile wallets, which use NFC-based technology to allow customers to make contactless payments at the point of sale, already have begun to make their presence felt. Mountain View, Calif.-based Google launched a digital wallet this past fall. The search giant has agreements with Visa, MasterCard, American Express and Discover to make the Google Wallet available to the card companies' account holders, and there even are some NFC-enabled terminals in use across the U.S. that can accept it, including at many mass transit stations. And mobile wallet ventures are cropping up around the globe, as well. Telecom companies including Vodafone and Telefonica announced this year wallet initiatives in Africa and Latin America. But mobile wallets still face many hurdles before they can gain widespread adoption, experts say, including the rather difficult task of getting consumers to change long-held habits."