About model and data exchange with 3rd party solutions: Revit, Solibri, dRofus, Bluebeam, structural analysis solutions, and IFC, BCF and DXF/DWG-based exchange, etc.
..... no ArchiCAD plugin yet, but it includes plugins for Sketchup 5 and 6 (Pro obviously), for those that use it, and the usual suspects - Max, Maya, LW, C4D etc etc etc.
Download away.....
Oh, and do stop by the Forum and drop a vote in the Wishlist section for an ArchiCAD plugin. The more demand for a software-specific plugin, the higher they prioritize its development.