http://www.cgtalk.com/showthread.php?t=209710
There will be a Plugin in future to make real nurbs and Spline/Patch modeling real in C4D.
Maybe this will be the converter from to A:M.
The plugin is in developing.
The User who interesting for a convert tool, should contact the developer to integrate this feature !!!
Maybe after this plugin there is a perfect work together A:M with C4D ?!?