Well, yes, but as of chapter 15 of GS, Harry has never so much as thought Toot Toot's true Name to himself. So shush! The longer I don't know it, the less likely I am to let Toot blab it to the world in the truth plot over at davey_jones!
I dunno...Harry keeps wishing for Toot Toot pretty hard. He might as well have summoned the kid already. Toot Toot is slightly jealous of Pikachu and Jiggly-puff.