It's the only possible redeeming feature that can excuse HGSS's existence. Though if they bothered to make 493+ walking sprites, you'd think they would have fixed the empty ridiculous "plot" of HGSS. :/ Rocket Admins, I am disappoint.
Signature is a WIP for the moment.
For now, I have claimed: Mewtwo, Member's Card, Wide Lens, Honey Gather, and Psystrike.
I loved them. I've never felt my team begin as important than in HG, and I bet it was, because I could always see one from the team running close to me. Hopefully that feature will return someday in future games.
I loved it, it should be in every game.