> In this light, is Purr Data the spiritual successor for Pd-Extended?

Yes.

> As I recall in previous discussions, y'all were explicit that Pd-L2Ork was not.

I don't remember that discussion.  But since Pd-l2ork only ever ran under

GNU/Linux (and a very limited "demo" I wrote for OSX) I suppose it must

have been mainly a theoretical discussion.

-Jonathan