Speaking of IFC's

Revit Architecture Achieves Full IFC 2x3 Certification

While I have my reservations about using IFC's this seems to be a step in the right direction towards interoperability.

While Archicad has been the leader with IFC's for a long time it looks like Autodesk is finally taking this seriously.

I hope IFC does become the standard but I think it's still a few years out before we really get there.