i love the dress, in general i am all for simple cuts.
and i love her hair but.... it's true that she constantly touches it to get it out of her face. she has done this since her first engagement as a royal and continues to do so as of today. it's rather distracting indeed. i have nothing against her hair, which is beautiful, being loose, but it just means she needs to be able to deal with it and not touch it... or otherwise tie it up. it is not only bad etiquette to touch your hair every 5 minutes, it is also distracting to her audience and makes her seem too self centered. i am surprised her advisers (who will be several) have not highlighted this to her earlier on.