It won't take much time until Mountain Lion will be released to the public.
The Question is if AutoCAD 2013 is ready for this OS Change or if it's better to wait?
Definitely - better to wait.
Look here for example (do you remember?):
Thanks Daz for sharing that.
And thanks Maxim for that reminder what happened to Lion
It is kinda strange that nothing has happened so far from Autodesk Side, as ML is out for Developers since more than six month (or something like that).
I think I will stay on Lion until.........