Amazon have launched their Amazon payments ecommerce service. From a quick browse it looks quite similar to PayPal and GoogleCheckout in scope and pricing. It doesn’t say in the FAQ which currencies and countries are supported, so it may only be US dollars/USA at present. I already offer payment by PayPal, GoogleCheckout, 2Checkout and cheque, so I don’t feel any need to be an early adopter of Amazon. I will be keeping an eye on it though and a bit of extra competition for PayPal and Google is welcome.