Please be this when in comes out in English! I can't bare the thought of what the media would do to the names "Black and White" :( Obsidian and Quartz FTW! And am I the only one who likes the gem theme?
Love it! Like a Pokemon of Good Karma and one of Bad? So they keep the natural balance between Good and Evil. And the 3rd one could be a Pokemon of Peace, so making the two stable and not conflict too much.
I like the idea of it going to the fast - but how will that work in the Anime? Also, I like the colours, they blend well and look slick and cool. Those are my two cents, hopefully I get Quoted or replied ;)
EDIT: And for all you Light Type fans, it looks like you wish could come true, unfortunately.