IOhannes, et al demoed a build of pd that did exactly this at the 2007 Montreal PdCon. There was a projection and about 3-4 mouse cursors alternatively cooperating and battling on the same canvas. Was great fun to watch for dataflow practitioners/nerds.
--------
Dan Wilcox
@danomatika
danomatika.com
robotcowboy.com

On Mar 31, 2015, at 8:08 PM, pd-list-request@lists.iem.at wrote:

From: jamal crawford <threen52@ml1.net>
To: pd-list@lists.iem.at
Date: March 31, 2015 at 6:56:20 PM EDT
Subject: [PD] working simultaneously on the same patch from two different places in the universe....


hey list

....without restarting pd or the patch.
theoretical reality or dream?

best regs
~/.jc