Pokemon Black and White Version 2 drop on October 7. You should buy it immediately to get in on the distribution of a mythical Pokemon named Genesect. Nintendo says that those that purchase early (before November 12) will have the chance to connect to Nintendo Wi-Fi Connection and nab Genesect through a limited-time distribution.
It's weird looking and has a silly name, but it's free! From Oct. 7 through Nov 12 is plenty of time to get the game and get downloading.