Autodesk announce the release of Autocad 2011 for MAC. It runs natively on the OS X platform with a MAC style interface.
Check the announcement at Autodesk site.
This version does not yet supports network licensing (floating/concurrent licensing) such as the Windows version that uses FLEXlm (FLEXnet) floating licensing.
Another important point to consider is that this initial version of Autocad for MAC does not yet includes all the functionality included in the Windows version. I assume that will be solved very soon.
Is it another crack in the Microsoft dominance in the organizational market?