Last week at the P2PU Open Wonderland meeting I tried to explain why Cell Messages are important. I did not do a good job of it so for that reason I decided to record the following two screencasts. In the first one I explain how you can get two (or more) clients running on the same machine. That gives a good starting point for the second one, an overview of the importance of Cell Messages.
The cell used in the video was developed following the Developing a new Cell tutorials part 1 to 3. Part 4 is the one that deals with messages, and would make the shape update properly in all the clients connected.
How to launch more than 1 client in the same machine:
Cell Messages and its importance for client communication: