I was recently part of a group session of the Infinite Ammo Podcast that touched on a crazy amount of topics, but some of those topics involved discussion involving Offspring Fling! I don't remember most of the recording, but I think somewhere in the 2 hour whirlwind of chaos recording there is some discussion about Offspring Fling involving level design, puzzle design, and respecting the player. Overall the entire podcast should be pretty awesome and interesting, so you should go give it a listen!
Oh, and I'll be posting some news about a release date pretty soon! : )
-kp
