The best source for information on this is the getshopped.org/forums/ forums. It appears that there are a couple of posts regarding this gateway in the forums, but the forums appear down at the moment.
Also, getshopped.org maintains a directory of developers that can help you develop a new payment gateway. These gateways are relatively simple to build (I’m working on one right now) depending on the complexity of the merchant API.
There’s no reason that the gateway cannot be build; it’s just a matter of finding someone to do it. And, I do not believe that the gateway you are looking for currently exists.