I know I'm late to the party but just finished Professor Layton and the Unwound Future! Great game, as usual, and a great ending.
I don't know what it is or how to explain it but there's something special in Professor Layton games, in their universe/characters... I believe I already told this when I finished "Diabolical Box" but ... it's very palpable yet hard to grasp in the same way of the classical fairy tales. It's like there's a bigger meaning deep inside the story and sometimes I could feel it in some dialogues (some of them are priceless).
I believe I'm becoming more and more of a gentleman as I play this series. =D