as i've understood it, the more you stretch, the more you can report to the "sun" in the middle of a system, who'll stretch the female counterpart to BOY (aka GIRL). as all the people in the world does this simultaneously at all times, GIRL grows and envelops the universe, granting more levels and playpieces all the while a growing parade of randomly generated characters representing the contributing players march on top of GIRL, around the universe.
so, it's a playground, but when enough people has played (aka risk getting bored) the game expands.
did i miss anything?
you pretty much hit the nail on the head.
it's an experiment in dev to player interaction; the more you play in the virtual world, the more the virtual world "expands."
as far as the gameplay goes, it's a literal 3D version of snake. you eat objects and grow and your length is collected together from gamers across the globe.
the game is fun. it's a pick up and play experience that doesn't get repetitive TOO fast and there's enough trademark WONKINESS (eating clouds and shitting out rainbows) to make it visually and aesthetically pleasing at the same time.
you guys are comparing this to big budget projects because "graphics sux". it's a fucking 5$ game with great replay value. i'm excited to see how they'll expand things in the future but i can see myself playing this for the rest of the year.