If you are accustomed to using the Ortho (F8) setting in the AutoCAD -based products to get perfectly vertical or horizontal lines, walls, etc, you can do the same thing with the Revit products. Hold down on the SHIFT key while you are placing walls, grids, lines, or most anything else to force it to be orthogonal.
As Building Information Modeling (BIM) becomes more commonly used by building design teams, usage of the model for code analysis will become more important. Currently, designers use manual or custom-developed methods to check code compliance of a building, but automatic code-compliance checking is coming.
Another Autodesk University is over and part of history, so I will once again write some of my thoughts about this latest AU conference centered around Autodesk software. This year it was held at the Mandalay Bay in Las Vegas for the 2nd consecutive year.