a) I know, that is still WIP :)
b) There is no friction, and as Newton's First Law states "an object will remain at rest or in uniform motion in a straight line unless acted upon by an external force" :)
Hey, again no offense meant. I just think the whole point of something like this is to mimic the real world. And after a couple of seconds my illusion is broken. Ps. It is cool, just needs to be cooler :)