I have received many emails lately concerning the Inventor 2D to 3D tools availability for Inventor 2011. As some of you probably already know, there is a 2D to 3D tool available on Labs that takes 2D views from AutoCAD and positions them to easily create 3D models.
This has been available for several versions of Inventor although we just updated it for Inventor 2011. If you AutoCAD 2D drawings that would like to turn into 3D models, head on over to Autodesk Labs and download the Inventor 2D to 3D tool.