I think the main reason they don't release the source code is because
they have no idea where it is or if there's even a copy still left!
They got lucky with ROTT, one of their programers backed it up for
himself. But it's doubtful we'll have such luck with other Apogee titles.

> Anyone an idea what's up with "Prey" (the one where you're able to
> blast everything and really everything physically correct into
> pieces)?

Prey has been placed on the back burner indefinetly until DNF is
released. The crew was switched over to Duke, but quite a few of them
have left and the lead engine designer no longer works there. So it
looks pretty grim, but I wouldn't be surprised if we see that kind of
interaction in Forever.