Mobile payment service Payair has brought their app to Windows Phone.
The service simplifies check-out both online and in store, but is at present mainly supported by Swedish stores.
Users register their credit or debit card with the service, and with supported stores simply scan the QRCode associated with a product and enter their PIN to confirm the transaction.
Shipping details are automatically entered and receipts generated and organized in the app.
Wingadget.se expects the service to soon expand from Sweden to USA and UK also.
If you are Swedish, find the app in the Windows Phone store here.