This event started March 4th and ends March 24th 2013. You can get meoletta for both Black2 and White2 as well as Black and White. You have to go to Gamestop in the USA or any EB games in Canada for this. Anyway I got meoletta for my Pokemon Black and White2 games. Funny thing is that the one in the Black game has a higher special attack stat than the one in White2.