Yea, I might get around to that soon, but right now I'm playing pearl/diamond. Funny to start the game with an arceus in the party.I havn't tried using it in battle with just one gym badge yet though.
Good thing here is that across the three games, I've chosen a different starter pokemon for each one.
I'm just bummed that I didn't also think of getting shaymin in those games either. Ah well.