We would love to integrate this particle system as it has so many cool features such as soft particles, heat and other shaders. This would save us so much time creating these upgrades to the current system.
I noticed that the link you sent for the runtime ( just checkin it out) is for Ogre, but when i last spoke to them they would not entertain us using it for Skyline. It would be great if they have changed their licensing but without permission or a copy of the license we dare not take any chances.
Saying all of this both particle universe and raknet became open source!