find a friend who has it and is willing to trade or join a pokemon forum and go to the trade center cause now that its over, they'll be popular but going like hot cakes cause there rare and collectors will snatch them up.
Its coming out in Japan in May and the normal versions are coming out in April in the US. Japan has already had it for a few months out there. Personally I think its a nice idea starting the limited editions early but they should have released one with the Black and Blue in the US come April...
This is officially the ugliest thing I have seen in technology. Why Slime Blue or all colors? Honestly, its not like the DS came out in Slime Blue ever.