The Name and signature pokemon of the third generation 4 (Sinnoh) game has been leaked (Allegedly.)And surprise surprise,It's Giratina!The Name:Platinum.Coming from giratina's glistening grey skin and part of it's name origin (The Romaji for Platinum,purachina.)

If it were just that,I wouldn't have said anything but...Here's the REAL news:The game is to feature Regigigas's sky form and Shamin's second form.

Erhem.Look at the full story (The first and second posts down) here!:

http://serebii.net/index2.shtml

Don't forget Giratina's origin form too.>_>