Yeah, I know you'd have to draw the line at the Oort cloud - modelling ,000s of bodies could get a bit tricky. I wonder how expandable the system already is though, and how many things are actually 'in-game', but not graphically represented yet. I'm sure Mr Brookes mentioned comets were in some time ago.
Yeah, I think he said the comet data was in. So presumably the ones we know about are in and maybe there is some procedural data ready to generate them. But we still can't see them.