Pokémon Black and White even hits store shelves. Here's another one for the pile: From February 21 through March 6, owners of one of the existing DS Pokémon games can stop by their local Gamestop and download Celebi, the time-traveling Pokémon for (eventual) use in Black or White. The little guy will even come with a bonus move that's not accessible through normal training in the game. Also? He's adorable.
There's extra incentive for you to grab Celebi from Gamestop while you can: transferring him over to your save file in Pokémon Black or White is the only way that you can access the new, shape-shifting Pokémon Zorua. You don't want to be the only kid on your block that doesn't have a Zorua, do you? Just think of all the smug looks you'd get from your neighbors.