Yeah, I know the vast majority of you guys 'sav..so...
Regardless.
Pokemon.com is trying to hype up the releas of Dream World by allowing us to play a game...if you manage to beat the game you'll be rewarded with one of the Eevee'lutions at the end. I believe it all depends on the score.
As a plus, they'll have their Dream World abilities.
Since Global Link isn't open yet, the Pokes will be saved for you until you Sync your game with Global Link....
...which means you'll have to make an account. :[
Ah well, here's the link:
http://www.pokemon.com/us/fun-zone/online-games/play-to-befriend-a-pokemon_fg/
Register. Play that game. Beat it. Get a Dream World Eevee'lution.