Beautiful
There was a time when I first heard about Flower and it's whole abstract game design that I simply pushed it out of my mind as being a good idea. Now here I am, months later, giving this game 5 stars! Who'da thunk it?! The game succeeds mainly on an artistic level. The gameplay may be nice and easy, but it's nothing over the top revolutionary.
I have to say, Brads review is also right. You'd think it would just be an open lovey dovey game about a flower's dreams.. but you'd be wrong. The game gets a little dark here and there, but that's actually really cool. It makes a cool relevant statement in a supremely georgeous way.
Play Flower for the experience, not for the challenge.