I've currently downloaded the source code to the MVC wrappers and am writing improved versions of the Renders to support Knockout.
In order to try and maximizer compatibility I've implemented my changes as additional classes and extension methods, so that any source code upgrades should be easy to maintain, I've had to implement them inside the infragistics project due to needing to access/inherit from internal classes.
Could you make all the classes public, expose the _helper and _model fields as properties of the wrappers and allow us to use alternative renderers.