The Google Checkout payment gateway has been available in the US for four years, but Australian online shoppers have been denied the service up until the launch of Google Voice, which uses Checkout to add credit to an account.

Credit card giant Visa has entered the micropayment processing space with payclick, a pre-paid hosted service aimed at teenagers purchasing online line content such as music and games.

Unsure that market forces alone can do the job, PayPal is betting Singapore's government can spur the development and adoption of mobile e-commerce applications in the Southeast Asian city-state.

Using MasterCard's MoneySend application, iPhone and iPad users will be able to send or receive money using their phone or tablet, the card company said on Thursday.

Heartland Payment Systems has made a third settlement deal, this time with MasterCard, related to a massive data breach two years ago at the card payments processor.