I already knew about Pokemon Platinum starting from only 1 or 2 days ago, from Wikipedia. I haven't been there for a very long time, as well as the official Pokemon website.
I was suprised to find out about the new forms for Giratina and Shaymin. I didn't think any Pokemon other than Deoxys would have alternative forms like these until now.
I didn't know there's already a topic about this. I haven't noticed it yet...