RISAFoundation - Revit integration is on the horizon, but we don't have a specific release date yet.
If you use RISAFoot (from inside RISA-3D, not RISAFoundation) then we can export this information over to Revit with the current links. But, that's just for single spread footings.
There really aren't any good work arounds that I can think of that work for slabs or pile caps. RISAFoundation does have the ability to export DXF files, which can problably be imported into Revit.... But, that's basically like incorporating an AutoCAD drawing into your Revit model.
