Yeah - after making the screenshot, I was actually planning on taking them out because 1) the logical disconnect and 2) the way I was removing the objects was horrid. I actually have trashed a ton of elements like black holes and the portals simply because I couldn't get them to work with the theme of the game.
As for the source, I still have a couple more recent ones that I'll look through, but no guarantees

K um...who cares about the "theme" of the game? If an effect (like portals, or black holes, etc) is seriously badapple, keep it! I would rather play a disjunct collage of incredibly awesome (think Little Big Planet) than a lack-luster but more make-sensical video game.

I totally agree with you! I think my biggest problem, more specifically, is that it's very difficult to combine all these myriad elements into a level that actually flows together smoothly. The problem (or how I see it) with the old Graviter is that I tried combining too many elements all at once, and levels quickly became cluttered and slow.

Not that we want him to move away from calculator stuff forever