Apparently they are doing beta testing with selected shopping cart scripts/providers right now.
http://forums.aspdotnetstorefront.com/showthread.php?t=11912
 
I've been waiting for this for years, as a low cost quick and dirty way to get a ecommerce site up and running.
 
Anyone have any experiences with Payments Pro?

I use it in the UK.
[One of the reasons I moved to Viart; the American Cart I was using would not offer the UK version of PayPal Pro].
 
It is excellent; if you are used to PayPal Standard you will feel that you have changed to a totally new checkout process. It is faster, easier and better for customers. And the card payment looks like a standard cc checkout and not a junior or cheap version.
 
Don't think of it as a "low cost quick and dirty way" — I regard it as a serious contender for other payment systems and has low charges for volume throughput.
 
I feel it is good to have one checkout that handles both cards and PayPal accounts - about 45% of my business is paid through customers' PayPal accounts and no other system can offer that.
 
Chris