What I mean is that Google Checkout, PayPal and Authorize.NET offer essentially the same service. Here in Brazil all the major gateways (PagSeguro, MoIP, Pagamento Digital, PayPal) also offer very simple HTML "buy now" buttons with a streamlined payment process. Being a gateway you don't need to signup anywhere else either. If your focus is on improving the UX and sign-up process, that's laudable, but there's a shit ton of competition!
