YES! A WIP-Thread, good idea crev.^^
Well my current work isn't that spectacular, fooling around with implementing real physics, mostly focussing on Constraints, Joints, Forces, Gravity, Collision Detection and Vehicles.
Work of today:
They apply Spring Forces in a linked list of Actors. The springed actors and joints (you may spring a spring joint itself Oo) influence each other making it possible to do double-springs, tri-springs and so on. It also supports dampening and rotational spring forces (the one described above is a translational spring force) for springed actor and the joint itself. The advanced subclass also supports triggering, dynamic set up properties (stretching the spring in realtime to determine how strong an actor is springed), delay and timing stuff, inertia and so on. Due to using a linked list you'll be able to iterate through every affected actor in a pretty fast way, knowing which element is the first, last, next, previous and so on. Spring Joints support both MyLevel set Actors and dynamicly spawned and additionally linked Actors.
No one would really care, but posting in a WIP Thread might be ok