I like how no one's assuming it'll have special features on the 3DS. I mean they just announced them both for the same year. Try thinking a bit, people.
Also, whoever said Gen 1 and 2 were on the same system, fail.
Red/Green/Blue/Yellow - Game Boy
Gold/Silver/Crystal - Game Boy Color
Ruby/Sapphire/Emerald/FireRed/LeafGreen - Game Boy Advance
Diamond/Pearl/Platinum/HeartGold/SoulSilver - Nintendo DS
(Assumption) Black/White - Nintendo 3DS