I recently saw the Inventor Fusion technology preview in Action at Autodesk University, and the main thing that impressed me was the user interface. There are many more context sensitive right-click "marking menus" like Alias if you have seen that. I was able to create geometry without ever leaving the center of my screen or even using hotkeys. Take a look at this short video for a fast example of the Inventor Fusion. I even turned the ribbon bar off for this example to show off the right click tools in action.
Contributed by Ben of the CAD Geeks
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