Pokémon Black & White - Nobunaga's Rayquaza Event
For those of you with the Japanese games, a new WiFi event has gone live. This event, to tie in with the launch of spin-off game Pokémon + Nobunaga's Ambition tomorrow, offers the download of a shiny Rayquaza based upon the shiny Rayquaza owned by Nobuanga within the game. This distribution will run until April 16th 2012 giving a month to download it so get it while you can.
(Serebii.com)