Devon Aoki definately has a....unique face, but it works. Kinda the same way that Carmen Kass' face works; not typically beautiful, but when the photos are taken, the results can be stunning.
And, yup Kate Moss was friends with Devon's grandmother or something like that, and she got her to take some pics and help get Devon into the modelling world.
I agree, since the modelling world is mostly 5'9+, shorter girls must have something extra, but at least there's hope to get in now. I'm sure before Kate Moss, no agents would look twice at anyone under 5'9.