We found out about Strange Attractors 2 when Ominous Development submitted it to The PAX 10. Gabriel essentially demanded that I sit down in front of it and see what they were doing. The best way to learn about it would be to play the demo, but in a nutshell the game is about gravity, orbit, and the manipulation thereof. This one's Windows only, but there's lots of ways around that these days.
(CW)TB