One Piece: What's this guy's deal?

My friends and I have been speculating as to the nature of this guy ever since he first showed up and everyone thought his Devil Fruit power was teleportation.

I'm not even sure what he's supposed to be anymore. The Paw Paw Fruit seems to bestow the user all manner of strange abilities, and none of them seem to have an awful lot to do with paws. Most recently, he used it to expel all the damage and fatigue Luffy had accumulated in his fight with Moria, and transfer it to Zoro.

So now apparently he's a super cyborg created by Dr. Vegapunk. And his body is stronger than steel according to Zoro. And he can shoot lasers from his mouth.

Sounds like One Piece to me.