Hi,
We just released a new payment plugin, for the US payment gateway SquareUp (www.squareup.com)
The plugin implements the Self-hosted approach, meaning the payment form is on your website - the customer never leaves the shop while making the payment. Making use of the SquareUp JavaScript library, means the Cardholder Data never reaches your server, which is according to the PCI Compliance rules.
Link to the plugin:
http://nop-payments.com/squareup-payment-plugin-nopcommerce
Coming soon: Authorize.NET payment plugin - implemented using Accept.js approach (self-hosted form, credit card data is sent to Authorize.NET and not to the shop's server)
Regrads,
Vlad