Taiwan Mobile, MasterCard test mobile payments.

"Taiwan Mobile Co. Ltd. and MasterCard International Inc. have already started testing a mobile phone payment system in Taiwan, but competition to lure users will catch fire when the mobile phone operator's larger rival opens its trials with Visa... On Thursday, Visa International Service Association and SK Telecom Inc. announced plans to introduce a mobile payment system using universal Subscriber Identification Module (USIM) cards for 3G (third-generation) mobile phones users in South Korea."