Hi all!
We have been developing/testing primarily on Mountain Lion. We have done some testing on Lion, and have not seen huge issues, but we cannot guarantee that it will work 100% on Lion.
As for the cursors (having the orbit or arrow cursor while drawing, for example), this is an issue in either version fo OS that we are working on.
Please let me know, either in this topic or via PM what you think, or if you see any problems.
Thanks!
Aaron