Interesting question .. one other way of asking this question I think is: How does Samba work, is it possible to run more than one instance of Samba, is it possible to configure alernative server ports - how do you configure Samba.
I believe that there should be a big and clear NO, there is not any opurtunity to configure more than one Samba domain, unless you use two servers.
But still ask myself .. could it be done .. any ideas ? Well I think not.
Arne.