Senior Principal Engineer, Kris Berg, let me know that the Inventor Fusion team had a new technology preview (TP) build for the Mac available. This build is just an update of TP1 with fixes for running on OS X Mountain Lion.
// Download Inventor Fusion for Windows or Mac via Autodesk Labs
So now Mac users who are providing feedback on the Inventor Fusion technology preview will be ready when Apple's Mountain Lion operating system is released.
Mutual of Omaha's Wild Kingdom is alive in the lab.