Uh.. well observed.

It sounds like you are the first actual user of peer_create. Now I wish Tk
had done this in a different way: when creating a text widget, specificy
that it is a peer of some other text widget via an option ("-peer w" for
example).

If possible I would like to keep the functionality through the method
"peer_create" (and as a minor detail, newPathName should be None by default
-- it is easy to pick some name for the peer).