Ok, here's some things i miss.
"On impact" in the physics, and "Impact force=X"
Physics objects that can be controlled with the mouse or like a plattformer. Maybe just be able to select mouse, or plattform movement, and then Physics movement, and it would combine the two.
Collision mask: None.
Edit: Set object immovable
Edit 2: Is there a way to create chains with the current physics engine? I would really have use for a simple chain without collisions. I'll make a guy with a pony tail that can blow around in the wind (allways, force=X or less: ad force Y)