Membrane contest

I am sure there will be enough people knowing the languages mentioned by Paul, and willing to participate.
I wonder, whether I'd better follow a different way, and design a language specifically for implementing membranes... But that would be E.

Another idea is to explore membrane as a game. 3-player game. A good reason to criticise theories that emphasise 2-player games?

Socially Responsive, Environmentally Friendly Logic

This logic looks very interesting, as it covers multiple players.
I still have to understand whether it also supports true concurrency in the sense used in CCP.