Another reason I don't think Harry's scar is a horcrux - that means that Voldy wouldn't have tried to kill Harry as a wee baby because he put part of his soul into harry. That'd be bad bombin' for Voldemort to purposely do that. But then again, when Wormtail used Harry's blood to revive Voldemort, that part of Voldemort's soul could have been used to bring him back to life, yes? So perhaps, the scar/Harry WAS a horcrux after all, but now that Voldy used the soul splinter, Harry's back to "normal" in that he's not a horcrux? But he can still speak parseltongue. Hmm. Lots of questions and little to no answers.