Leviathan by Scott Westerfield

Anyone read this? I saw it on an endcap at Barnes and Noble, but I was sort of on the fence about it.

Obviously I don't expect anything astounding and thought-provoking out of it, but it seemed like an enjoyable read.

I never understood why a book with younger main characters would automatically be considered "young adult fiction". Based on that logic, shouldn't ASoIaF be considered young adult fiction?

Also, for the part of the book that's really worth it, go to KeithThompsonArt.com