$1.99 fr the iPad, $.99 iPhone right now. loving it. puzzle-y mixed with some cool physics. it's easy, but they seem to add more things to it.
basically, you are a cell puttering around by spitting out parts of yourself, but you can also collect up other cells and your parts that you spit out can fly back at you, recombining. conservation of momentum it is not, but i like he look music and controls. they played a track by gus too. neat.
