Update,
Having finally reached a 'Real Human'
as well as a sparky @ Siemens, I have learned that they DO NOT MAKE a 2-pole AFCI to address multiwire circuits.
He claimed that they had numerous calls on multiwire compliance, and that they were 'working on it'....
counting to 11.......[This message has been edited by sparky (edited 02-14-2002).]