Mobile payments provider Fortumo announced in a blog post Wednesday the beta debut of its mobile payments offering for devices running Microsoft Windows 8.

Windows 8 is Microsoft’s massively redesigned, touch-enabled operating system that became widely available last week.

The new product by Fortumo allows developers to add mobile payments to any Windows 8 app, including those running on Windows RT and Microsoft Surface tablets, said Fortumo. Windows RT only runs new Windows 8 apps.

“With the launch of Windows 8, developers now have an additional platform on which to build and distribute their applications,” said Rain Rannu, co-founder of Fortumo, in a statement. “We will be helping them to develop new revenue streams from the get-go.”

Fortumo’s technology lets customers pay for digital goods by placing the charge on their mobile operator bill. Fortumo works in 80 countries and supports more than 45 different currencies. Fortumo has signed up more than 70,000 mobile payments merchants.