A payment processing system includes a transaction terminal having a merchant account associated therewith and including a first wireless device. The payment processing system also includes a payment server, and a mobile wireless communications device having a purchaser account associated therewith and including a second wireless device and a processor coupled thereto and configured to send transaction information to the payment server. The payment server is configured to cause a transfer of funds from the purchaser account to the merchant account based upon the transaction information, and to send payment confirmation to the mobile wireless communications device based upon the transfer of funds. The processor is configured to send the payment confirmation to the transaction terminal via the first and second wireless devices.