very nice! off the bat the this gives me the right "feel" very funky and fun. I am thinking if maybe there can be anyway you can add anything to give the idea of swirl of yogurt.....I dont know it may take away from logo. I do like the fact that it is simple clean and yet funky at the same time which is hard to do.
how about a different swirl inside the "o" to not make it stick out like in # 19. maybe try adding lines like the ice cream machines makes when you are serving the ice cream.... # 2 is still may fav...how about the line in the star making it yellow instead of blue like it is now?
also on # 2 how about inside the "o" a cup like on the far right without the spoon and strawberries http://yocupco.com/index.htm just the cup and a swirl