Do you believe there is any legitimacy to the "science" of graphology (i.e., the study of handwriting)?

Not really... Maybe a few things such as fast writing means you are in a hurry...

A few years back I studied graphology and this turned into sociology, then into psychology, then into biology, then into anthology, then into physiology and still not satisfied. Oh, crap you asked a question, yes there is creditable use if you can get past your own resistance called self-defeating biases. Although there is really no fact called personality only a theory based on some guttural emotions, which were subject to changes. personalities, even animals have one, even parasites (if you can see them.!@#$%^&.) Phrenology and you can keep the bumps on another's head, mine are not there since I stop banging it against the walls in trying to derive an answer for Yahoo!

You can tell a lot about a person by studying his hand writing.