MasterCard Worldwide today announced a partnership with Obopay Inc. to offer a person-to-person mobile-payment service. The companies plan to test the service, known as MasterCard MoneySend, later this year. The service will enable customers of participating banks to send funds from a MasterCard credit, debit or prepaid account to any other MasterCard account through the MoneySend system, says Simon Pugh, group head of MasterCard's Center of Excellence for Mobile. Consumers register for the service and can designate which accounts send and receive funds, he says. MoneySend participants can use a computer to access the service online or get on through a mobile device using SMS text messaging, Web browsers or a downloadable application. Users can choose which mobile option fits their mobile devices, says Pugh. MasterCard's partnership with Redwood City, Calif.-based Obopay extends MasterCard's "core-processing network and provides a user interface for the mobile channel," says Pugh. The relationship "allows people to access the service through mobile devices to initiate and receive transactions." MasterCard plans to test MoneySend with issuers toward the end of the year and launch it in 2009. Pugh declined to disclose the issuers potentially involved in the test.