Yeah, it's in kind of a stupid place.
By the way, you won't need this number for Brawl, Strikers, and likely Mario Kart...you do all the online stuff for those games in-game...which means you have a separate code for Brawl, Strikers, etc.
It's a little annoying, but it's not like you have to enter the number more than once...once its in your address book you just go by name.
LEFT4DEAD411.COM
Bet with disolitude: Left4Dead will have a higher Metacritic rating than Project Origin, 3 months after the second game's release. (hasn't been 3 months but it looks like I won :-p )