Hi David, yes we are in the process of building an internal version of a QV-Marketo connector. We are building using a QVX connector and then distilling the data down into QVDs, but it could probably also be done using any other API integration tools such as Boomi or SQL.
Here is some documentation on how the QVX connector works:
http://community.qlikview.com/docs/DOC-2639Hope this helps!