I have isotope ecommerce but it is sad because there is currently one payment opportune, bill for email. I know there is some big payment gateway like Klarna. It working in Germany, Danmark, Sweden and here Finland. I hope to see some day that Klarna will found in isotope payment modules.

Klarna have payment api of cource:
http://integration.klarna.com/en/api/step-by-step

Isotope rocks! :geek:

(Sorry for my bad english)