I wanted to flow up on the point clouds topic with a few more references.
This is an example of getting a point cloud scan, slicing it by level, saving it as an image and then importing it into Revit to use as an underlay. Seams to work well
This is a link to an article on point clouds used in building a Revit model.
I still have not found any other products that have add-ins to make point clouds simpler to use in Revit like Scan to BIM. Please send me any other info you may have on the topic. I am now starting to work on a photogrammetry post which is related to point clouds or more specifically reality capture.