Model Interoperability

AISC has recently come out in support of IFC as the preferred method for model data exchange (Reference "The New AISC Interoperability Strategy"; Modern Steel Construction, November 2011). 

Will IFC be interoperable with ISM?  How does Bentley plan to integrate IFC with the structural products?  Is Bentley planning on helping to steer the direction of IFC to foster interoperability between analysis and drafting?