Hi Scott,
Yes, I can import or copy feature classes successfully.
Can it be something about your privileges on the drive you are trying to write to?
The `ls -l` command shows me that I am the owner and that I can do the following with the .gdb folder on samba:
drwxr-x---
and I can do the following with the files in the geodatabase folder:
-rw-r-----
I can even see the .lock files when ArcMap session is using some data from there and the lock files disappear when I close ArcMap.
F.