I am an architect using both Revit and SketchUP. In response to the Australian, everybody is not as fortunate as we are by having access to an expensive but powerful program as Revit. So as an introductory program into the wonderful world of 3D, wall tools for SU would be helpful to those just beginning. I had the opportunity last week to show Revit and SU to a new student majoring in interior design. I only had an hour so I spent 15-20 minutes in Revit and most of the time in SU, downloading furniture and whole rooms from 3D Warehouse. That really got her attention. The thing that she needed was wall thicknesses. We could build surfaces and offset them, then cut holes through both surfaces, but the tools Al is proposing would be a tremendous time saver new users like her.
I started using CAD 25 years ago and think that Revit is the best and most intuitive ever for architects. SU is the best for mass modeling. Last week I needed to build a stone cap parapet for a sloped wall in Revit. After trying for half hour, I gave up and exported the wall out of Revit to DWG, imported it into SU. Built the parapet using "follow me" in 1 minute. Saved it, then imported it back into Revit. All the exporting and importing took longer than the creation of the object!
How about a plugin for Revit that will let us do quick SU modeling inside Revit?