Reviewed on June 15, 2007Obopay is an easy and convenient way to send and receive money, and the prepaid Mastercard option is a clever method of money management for teens. The service won't replace your wallet, however, and because of the many fees involved, hard cash may still be your best friend.TAGS:MasterCard International, text messaging, fee, bank account, wallet, ATM, fund, account, bank, cell phone, credit card, message