Anyways, Rukario is one of the Pokemon that is going to appear in Pearl/Diamond.
Check out serebii.net for more info. Apparantly it has relations to Mew and will appear in the new Pokemon move alongside it. Gotta admit, if you have a look at the silouette (HTF do you spell it...) of it, it looks kinda like Mewtwo... or Mewthree!

Silhouette.
I bet it's gonna be another über Pokémon, like Mewtwo and Deoxys.

yeah um. i found out about rukario the day it was released ._.

i think it will be Red, the pale Yellow, and Bright Yellow.

Like Blaziken-Mewtwo Hybrid :D