I have downloaded Diablo 3 after purchasing it directly from Battle.net's store. It is installing as I am typing this. I would like to know where I can find the product key as the game client asks that I activate the game before I can begin playing. I am also aware that the servers won't be up until the actual day of launch, May 15, but I still want to know where the product key is for digital download versions of Diablo 3. Any help is appreciated. Thank you!