Didn't see a thread on this and I thought the Wi-Fi site was too complicated. Come here to post scores, swap friend codes, brag (to a certain extent) set up game times, chat, etc.

As for me:
Game(s): Metroid Prime Hunters (DS)
Friend Code: Metrioid PH: 5240-7929-4957
Rank Yourself: Quite the noob.

The forum has a really nice search function for that :o

http://forums.ichigos.com/showthread.php?t=5417&highlight=nintendo