I'm writing a simple messaging system of the new XOOPS Cube core 1.0. Messaging system is not PM. That's core system and a async communication method between objects (actors). An object will be able to pass a message to another object, even if the object don't know the existence of another object. An object as an actor receives messages through it's mailbox. A such mechanism is used by CELL processor that needs to communicate between SPU and PPU.
The messaging system and the task system is the most imortant new features of the new core.
We should prepare such systems for next-gen pararell programming. And, my role is developing such systems. I will write technical brief of these.